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  1. # This is an example configuration file for the LVM2 system.
  2. # It contains the default settings that would be used if there was no
  3. # /etc/lvm/lvm.conf file.
  4. #
  5. # Refer to 'man lvm.conf' for further information including the file layout.
  6. #
  7. # Refer to 'man lvm.conf' for information about how settings configured in
  8. # this file are combined with built-in values and command line options to
  9. # arrive at the final values used by LVM.
  10. #
  11. # Refer to 'man lvmconfig' for information about displaying the built-in
  12. # and configured values used by LVM.
  13. #
  14. # If a default value is set in this file (not commented out), then a
  15. # new version of LVM using this file will continue using that value,
  16. # even if the new version of LVM changes the built-in default value.
  17. #
  18. # To put this file in a different directory and override /etc/lvm set
  19. # the environment variable LVM_SYSTEM_DIR before running the tools.
  20. #
  21. # N.B. Take care that each setting only appears once if uncommenting
  22. # example settings in this file.
  23.  
  24.  
  25. # Configuration section config.
  26. # How LVM configuration settings are handled.
  27. config {
  28.  
  29. # Configuration option config/checks.
  30. # If enabled, any LVM configuration mismatch is reported.
  31. # This implies checking that the configuration key is understood by
  32. # LVM and that the value of the key is the proper type. If disabled,
  33. # any configuration mismatch is ignored and the default value is used
  34. # without any warning (a message about the configuration key not being
  35. # found is issued in verbose mode only).
  36. checks = 1
  37.  
  38. # Configuration option config/abort_on_errors.
  39. # Abort the LVM process if a configuration mismatch is found.
  40. abort_on_errors = 0
  41.  
  42. # Configuration option config/profile_dir.
  43. # Directory where LVM looks for configuration profiles.
  44. profile_dir = "/etc/lvm/profile"
  45. }
  46.  
  47. # Configuration section devices.
  48. # How LVM uses block devices.
  49. devices {
  50.  
  51. # Configuration option devices/dir.
  52. # Directory in which to create volume group device nodes.
  53. # Commands also accept this as a prefix on volume group names.
  54. # This configuration option is advanced.
  55. dir = "/dev"
  56.  
  57. # Configuration option devices/scan.
  58. # Directories containing device nodes to use with LVM.
  59. # This configuration option is advanced.
  60. scan = [ "/dev" ]
  61.  
  62. # Configuration option devices/obtain_device_list_from_udev.
  63. # Obtain the list of available devices from udev.
  64. # This avoids opening or using any inapplicable non-block devices or
  65. # subdirectories found in the udev directory. Any device node or
  66. # symlink not managed by udev in the udev directory is ignored. This
  67. # setting applies only to the udev-managed device directory; other
  68. # directories will be scanned fully. LVM needs to be compiled with
  69. # udev support for this setting to apply.
  70. obtain_device_list_from_udev = 1
  71.  
  72. # Configuration option devices/external_device_info_source.
  73. # Select an external device information source.
  74. # Some information may already be available in the system and LVM can
  75. # use this information to determine the exact type or use of devices it
  76. # processes. Using an existing external device information source can
  77. # speed up device processing as LVM does not need to run its own native
  78. # routines to acquire this information. For example, this information
  79. # is used to drive LVM filtering like MD component detection, multipath
  80. # component detection, partition detection and others.
  81. #
  82. # Accepted values:
  83. # none
  84. # No external device information source is used.
  85. # udev
  86. # Reuse existing udev database records. Applicable only if LVM is
  87. # compiled with udev support.
  88. #
  89. external_device_info_source = "none"
  90.  
  91. # Configuration option devices/preferred_names.
  92. # Select which path name to display for a block device.
  93. # If multiple path names exist for a block device, and LVM needs to
  94. # display a name for the device, the path names are matched against
  95. # each item in this list of regular expressions. The first match is
  96. # used. Try to avoid using undescriptive /dev/dm-N names, if present.
  97. # If no preferred name matches, or if preferred_names are not defined,
  98. # the following built-in preferences are applied in order until one
  99. # produces a preferred name:
  100. # Prefer names with path prefixes in the order of:
  101. # /dev/mapper, /dev/disk, /dev/dm-*, /dev/block.
  102. # Prefer the name with the least number of slashes.
  103. # Prefer a name that is a symlink.
  104. # Prefer the path with least value in lexicographical order.
  105. #
  106. # Example
  107. # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
  108. #
  109. # This configuration option does not have a default value defined.
  110.  
  111. # Configuration option devices/filter.
  112. # Limit the block devices that are used by LVM commands.
  113. # This is a list of regular expressions used to accept or reject block
  114. # device path names. Each regex is delimited by a vertical bar '|'
  115. # (or any character) and is preceded by 'a' to accept the path, or
  116. # by 'r' to reject the path. The first regex in the list to match the
  117. # path is used, producing the 'a' or 'r' result for the device.
  118. # When multiple path names exist for a block device, if any path name
  119. # matches an 'a' pattern before an 'r' pattern, then the device is
  120. # accepted. If all the path names match an 'r' pattern first, then the
  121. # device is rejected. Unmatching path names do not affect the accept
  122. # or reject decision. If no path names for a device match a pattern,
  123. # then the device is accepted. Be careful mixing 'a' and 'r' patterns,
  124. # as the combination might produce unexpected results (test changes.)
  125. # Run vgscan after changing the filter to regenerate the cache.
  126. # See the use_lvmetad comment for a special case regarding filters.
  127. #
  128. # Example
  129. # Accept every block device:
  130. # filter = [ "a|.*/|" ]
  131. # Reject the cdrom drive:
  132. # filter = [ "r|/dev/cdrom|" ]
  133. # Work with just loopback devices, e.g. for testing:
  134. # filter = [ "a|loop|", "r|.*|" ]
  135. # Accept all loop devices and ide drives except hdc:
  136. # filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
  137. # Use anchors to be very specific:
  138. # filter = [ "a|^/dev/hda8$|", "r|.*/|" ]
  139. #
  140. # This configuration option has an automatic default value.
  141. # filter = [ "a|.*/|" ]
  142.  
  143. # Configuration option devices/global_filter.
  144. # Limit the block devices that are used by LVM system components.
  145. # Because devices/filter may be overridden from the command line, it is
  146. # not suitable for system-wide device filtering, e.g. udev and lvmetad.
  147. # Use global_filter to hide devices from these LVM system components.
  148. # The syntax is the same as devices/filter. Devices rejected by
  149. # global_filter are not opened by LVM.
  150. # This configuration option has an automatic default value.
  151. # global_filter = [ "a|.*/|" ]
  152.  
  153. # Configuration option devices/cache_dir.
  154. # Directory in which to store the device cache file.
  155. # The results of filtering are cached on disk to avoid rescanning dud
  156. # devices (which can take a very long time). By default this cache is
  157. # stored in a file named .cache. It is safe to delete this file; the
  158. # tools regenerate it. If obtain_device_list_from_udev is enabled, the
  159. # list of devices is obtained from udev and any existing .cache file
  160. # is removed.
  161. cache_dir = "/etc/lvm/cache"
  162.  
  163. # Configuration option devices/cache_file_prefix.
  164. # A prefix used before the .cache file name. See devices/cache_dir.
  165. cache_file_prefix = ""
  166.  
  167. # Configuration option devices/write_cache_state.
  168. # Enable/disable writing the cache file. See devices/cache_dir.
  169. write_cache_state = 1
  170.  
  171. # Configuration option devices/types.
  172. # List of additional acceptable block device types.
  173. # These are of device type names from /proc/devices, followed by the
  174. # maximum number of partitions.
  175. #
  176. # Example
  177. # types = [ "fd", 16 ]
  178. #
  179. # This configuration option is advanced.
  180. # This configuration option does not have a default value defined.
  181.  
  182. # Configuration option devices/sysfs_scan.
  183. # Restrict device scanning to block devices appearing in sysfs.
  184. # This is a quick way of filtering out block devices that are not
  185. # present on the system. sysfs must be part of the kernel and mounted.)
  186. sysfs_scan = 1
  187.  
  188. # Configuration option devices/multipath_component_detection.
  189. # Ignore devices that are components of DM multipath devices.
  190. multipath_component_detection = 1
  191.  
  192. # Configuration option devices/md_component_detection.
  193. # Ignore devices that are components of software RAID (md) devices.
  194. md_component_detection = 1
  195.  
  196. # Configuration option devices/fw_raid_component_detection.
  197. # Ignore devices that are components of firmware RAID devices.
  198. # LVM must use an external_device_info_source other than none for this
  199. # detection to execute.
  200. fw_raid_component_detection = 0
  201.  
  202. # Configuration option devices/md_chunk_alignment.
  203. # Align PV data blocks with md device's stripe-width.
  204. # This applies if a PV is placed directly on an md device.
  205. md_chunk_alignment = 1
  206.  
  207. # Configuration option devices/default_data_alignment.
  208. # Default alignment of the start of a PV data area in MB.
  209. # If set to 0, a value of 64KiB will be used.
  210. # Set to 1 for 1MiB, 2 for 2MiB, etc.
  211. # This configuration option has an automatic default value.
  212. # default_data_alignment = 1
  213.  
  214. # Configuration option devices/data_alignment_detection.
  215. # Detect PV data alignment based on sysfs device information.
  216. # The start of a PV data area will be a multiple of minimum_io_size or
  217. # optimal_io_size exposed in sysfs. minimum_io_size is the smallest
  218. # request the device can perform without incurring a read-modify-write
  219. # penalty, e.g. MD chunk size. optimal_io_size is the device's
  220. # preferred unit of receiving I/O, e.g. MD stripe width.
  221. # minimum_io_size is used if optimal_io_size is undefined (0).
  222. # If md_chunk_alignment is enabled, that detects the optimal_io_size.
  223. # This setting takes precedence over md_chunk_alignment.
  224. data_alignment_detection = 1
  225.  
  226. # Configuration option devices/data_alignment.
  227. # Alignment of the start of a PV data area in KiB.
  228. # If a PV is placed directly on an md device and md_chunk_alignment or
  229. # data_alignment_detection are enabled, then this setting is ignored.
  230. # Otherwise, md_chunk_alignment and data_alignment_detection are
  231. # disabled if this is set. Set to 0 to use the default alignment or the
  232. # page size, if larger.
  233. data_alignment = 0
  234.  
  235. # Configuration option devices/data_alignment_offset_detection.
  236. # Detect PV data alignment offset based on sysfs device information.
  237. # The start of a PV aligned data area will be shifted by the
  238. # alignment_offset exposed in sysfs. This offset is often 0, but may
  239. # be non-zero. Certain 4KiB sector drives that compensate for windows
  240. # partitioning will have an alignment_offset of 3584 bytes (sector 7
  241. # is the lowest aligned logical block, the 4KiB sectors start at
  242. # LBA -1, and consequently sector 63 is aligned on a 4KiB boundary).
  243. # pvcreate --dataalignmentoffset will skip this detection.
  244. data_alignment_offset_detection = 1
  245.  
  246. # Configuration option devices/ignore_suspended_devices.
  247. # Ignore DM devices that have I/O suspended while scanning devices.
  248. # Otherwise, LVM waits for a suspended device to become accessible.
  249. # This should only be needed in recovery situations.
  250. ignore_suspended_devices = 0
  251.  
  252. # Configuration option devices/ignore_lvm_mirrors.
  253. # Do not scan 'mirror' LVs to avoid possible deadlocks.
  254. # This avoids possible deadlocks when using the 'mirror' segment type.
  255. # This setting determines whether LVs using the 'mirror' segment type
  256. # are scanned for LVM labels. This affects the ability of mirrors to
  257. # be used as physical volumes. If this setting is enabled, it is
  258. # impossible to create VGs on top of mirror LVs, i.e. to stack VGs on
  259. # mirror LVs. If this setting is disabled, allowing mirror LVs to be
  260. # scanned, it may cause LVM processes and I/O to the mirror to become
  261. # blocked. This is due to the way that the mirror segment type handles
  262. # failures. In order for the hang to occur, an LVM command must be run
  263. # just after a failure and before the automatic LVM repair process
  264. # takes place, or there must be failures in multiple mirrors in the
  265. # same VG at the same time with write failures occurring moments before
  266. # a scan of the mirror's labels. The 'mirror' scanning problems do not
  267. # apply to LVM RAID types like 'raid1' which handle failures in a
  268. # different way, making them a better choice for VG stacking.
  269. ignore_lvm_mirrors = 1
  270.  
  271. # Configuration option devices/disable_after_error_count.
  272. # Number of I/O errors after which a device is skipped.
  273. # During each LVM operation, errors received from each device are
  274. # counted. If the counter of a device exceeds the limit set here,
  275. # no further I/O is sent to that device for the remainder of the
  276. # operation. Setting this to 0 disables the counters altogether.
  277. disable_after_error_count = 0
  278.  
  279. # Configuration option devices/require_restorefile_with_uuid.
  280. # Allow use of pvcreate --uuid without requiring --restorefile.
  281. require_restorefile_with_uuid = 1
  282.  
  283. # Configuration option devices/pv_min_size.
  284. # Minimum size in KiB of block devices which can be used as PVs.
  285. # In a clustered environment all nodes must use the same value.
  286. # Any value smaller than 512KiB is ignored. The previous built-in
  287. # value was 512.
  288. pv_min_size = 2048
  289.  
  290. # Configuration option devices/issue_discards.
  291. # Issue discards to PVs that are no longer used by an LV.
  292. # Discards are sent to an LV's underlying physical volumes when the LV
  293. # is no longer using the physical volumes' space, e.g. lvremove,
  294. # lvreduce. Discards inform the storage that a region is no longer
  295. # used. Storage that supports discards advertise the protocol-specific
  296. # way discards should be issued by the kernel (TRIM, UNMAP, or
  297. # WRITE SAME with UNMAP bit set). Not all storage will support or
  298. # benefit from discards, but SSDs and thinly provisioned LUNs
  299. # generally do. If enabled, discards will only be issued if both the
  300. # storage and kernel provide support.
  301. issue_discards = 0
  302. }
  303.  
  304. # Configuration section allocation.
  305. # How LVM selects space and applies properties to LVs.
  306. allocation {
  307.  
  308. # Configuration option allocation/cling_tag_list.
  309. # Advise LVM which PVs to use when searching for new space.
  310. # When searching for free space to extend an LV, the 'cling' allocation
  311. # policy will choose space on the same PVs as the last segment of the
  312. # existing LV. If there is insufficient space and a list of tags is
  313. # defined here, it will check whether any of them are attached to the
  314. # PVs concerned and then seek to match those PV tags between existing
  315. # extents and new extents.
  316. #
  317. # Example
  318. # Use the special tag "@*" as a wildcard to match any PV tag:
  319. # cling_tag_list = [ "@*" ]
  320. # LVs are mirrored between two sites within a single VG, and
  321. # PVs are tagged with either @site1 or @site2 to indicate where
  322. # they are situated:
  323. # cling_tag_list = [ "@site1", "@site2" ]
  324. #
  325. # This configuration option does not have a default value defined.
  326.  
  327. # Configuration option allocation/maximise_cling.
  328. # Use a previous allocation algorithm.
  329. # Changes made in version 2.02.85 extended the reach of the 'cling'
  330. # policies to detect more situations where data can be grouped onto
  331. # the same disks. This setting can be used to disable the changes
  332. # and revert to the previous algorithm.
  333. maximise_cling = 1
  334.  
  335. # Configuration option allocation/use_blkid_wiping.
  336. # Use blkid to detect existing signatures on new PVs and LVs.
  337. # The blkid library can detect more signatures than the native LVM
  338. # detection code, but may take longer. LVM needs to be compiled with
  339. # blkid wiping support for this setting to apply. LVM native detection
  340. # code is currently able to recognize: MD device signatures,
  341. # swap signature, and LUKS signatures. To see the list of signatures
  342. # recognized by blkid, check the output of the 'blkid -k' command.
  343. use_blkid_wiping = 1
  344.  
  345. # Configuration option allocation/wipe_signatures_when_zeroing_new_lvs.
  346. # Look for and erase any signatures while zeroing a new LV.
  347. # The --wipesignatures option overrides this setting.
  348. # Zeroing is controlled by the -Z/--zero option, and if not specified,
  349. # zeroing is used by default if possible. Zeroing simply overwrites the
  350. # first 4KiB of a new LV with zeroes and does no signature detection or
  351. # wiping. Signature wiping goes beyond zeroing and detects exact types
  352. # and positions of signatures within the whole LV. It provides a
  353. # cleaner LV after creation as all known signatures are wiped. The LV
  354. # is not claimed incorrectly by other tools because of old signatures
  355. # from previous use. The number of signatures that LVM can detect
  356. # depends on the detection code that is selected (see
  357. # use_blkid_wiping.) Wiping each detected signature must be confirmed.
  358. # When this setting is disabled, signatures on new LVs are not detected
  359. # or erased unless the --wipesignatures option is used directly.
  360. wipe_signatures_when_zeroing_new_lvs = 1
  361.  
  362. # Configuration option allocation/mirror_logs_require_separate_pvs.
  363. # Mirror logs and images will always use different PVs.
  364. # The default setting changed in version 2.02.85.
  365. mirror_logs_require_separate_pvs = 0
  366.  
  367. # Configuration option allocation/cache_pool_metadata_require_separate_pvs.
  368. # Cache pool metadata and data will always use different PVs.
  369. cache_pool_metadata_require_separate_pvs = 0
  370.  
  371. # Configuration option allocation/cache_mode.
  372. # The default cache mode used for new cache.
  373. #
  374. # Accepted values:
  375. # writethrough
  376. # Data blocks are immediately written from the cache to disk.
  377. # writeback
  378. # Data blocks are written from the cache back to disk after some
  379. # delay to improve performance.
  380. #
  381. # This setting replaces allocation/cache_pool_cachemode.
  382. # This configuration option has an automatic default value.
  383. # cache_mode = "writethrough"
  384.  
  385. # Configuration option allocation/cache_policy.
  386. # The default cache policy used for new cache volume.
  387. # Since kernel 4.2 the default policy is smq (Stochastic multique),
  388. # otherwise the older mq (Multiqueue) policy is selected.
  389. # This configuration option does not have a default value defined.
  390.  
  391. # Configuration section allocation/cache_settings.
  392. # Settings for the cache policy.
  393. # See documentation for individual cache policies for more info.
  394. # This configuration section has an automatic default value.
  395. # cache_settings {
  396. # }
  397.  
  398. # Configuration option allocation/cache_pool_chunk_size.
  399. # The minimal chunk size in KiB for cache pool volumes.
  400. # Using a chunk_size that is too large can result in wasteful use of
  401. # the cache, where small reads and writes can cause large sections of
  402. # an LV to be mapped into the cache. However, choosing a chunk_size
  403. # that is too small can result in more overhead trying to manage the
  404. # numerous chunks that become mapped into the cache. The former is
  405. # more of a problem than the latter in most cases, so the default is
  406. # on the smaller end of the spectrum. Supported values range from
  407. # 32KiB to 1GiB in multiples of 32.
  408. # This configuration option does not have a default value defined.
  409.  
  410. # Configuration option allocation/thin_pool_metadata_require_separate_pvs.
  411. # Thin pool metdata and data will always use different PVs.
  412. thin_pool_metadata_require_separate_pvs = 0
  413.  
  414. # Configuration option allocation/thin_pool_zero.
  415. # Thin pool data chunks are zeroed before they are first used.
  416. # Zeroing with a larger thin pool chunk size reduces performance.
  417. # This configuration option has an automatic default value.
  418. # thin_pool_zero = 1
  419.  
  420. # Configuration option allocation/thin_pool_discards.
  421. # The discards behaviour of thin pool volumes.
  422. #
  423. # Accepted values:
  424. # ignore
  425. # nopassdown
  426. # passdown
  427. #
  428. # This configuration option has an automatic default value.
  429. # thin_pool_discards = "passdown"
  430.  
  431. # Configuration option allocation/thin_pool_chunk_size_policy.
  432. # The chunk size calculation policy for thin pool volumes.
  433. #
  434. # Accepted values:
  435. # generic
  436. # If thin_pool_chunk_size is defined, use it. Otherwise, calculate
  437. # the chunk size based on estimation and device hints exposed in
  438. # sysfs - the minimum_io_size. The chunk size is always at least
  439. # 64KiB.
  440. # performance
  441. # If thin_pool_chunk_size is defined, use it. Otherwise, calculate
  442. # the chunk size for performance based on device hints exposed in
  443. # sysfs - the optimal_io_size. The chunk size is always at least
  444. # 512KiB.
  445. #
  446. # This configuration option has an automatic default value.
  447. # thin_pool_chunk_size_policy = "generic"
  448.  
  449. # Configuration option allocation/thin_pool_chunk_size.
  450. # The minimal chunk size in KiB for thin pool volumes.
  451. # Larger chunk sizes may improve performance for plain thin volumes,
  452. # however using them for snapshot volumes is less efficient, as it
  453. # consumes more space and takes extra time for copying. When unset,
  454. # lvm tries to estimate chunk size starting from 64KiB. Supported
  455. # values are in the range 64KiB to 1GiB.
  456. # This configuration option does not have a default value defined.
  457.  
  458. # Configuration option allocation/physical_extent_size.
  459. # Default physical extent size in KiB to use for new VGs.
  460. # This configuration option has an automatic default value.
  461. # physical_extent_size = 4096
  462. }
  463.  
  464. # Configuration section log.
  465. # How LVM log information is reported.
  466. log {
  467.  
  468. # Configuration option log/verbose.
  469. # Controls the messages sent to stdout or stderr.
  470. verbose = 0
  471.  
  472. # Configuration option log/silent.
  473. # Suppress all non-essential messages from stdout.
  474. # This has the same effect as -qq. When enabled, the following commands
  475. # still produce output: dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck,
  476. # pvdisplay, pvs, version, vgcfgrestore -l, vgdisplay, vgs.
  477. # Non-essential messages are shifted from log level 4 to log level 5
  478. # for syslog and lvm2_log_fn purposes.
  479. # Any 'yes' or 'no' questions not overridden by other arguments are
  480. # suppressed and default to 'no'.
  481. silent = 0
  482.  
  483. # Configuration option log/syslog.
  484. # Send log messages through syslog.
  485. syslog = 1
  486.  
  487. # Configuration option log/file.
  488. # Write error and debug log messages to a file specified here.
  489. # This configuration option does not have a default value defined.
  490.  
  491. # Configuration option log/overwrite.
  492. # Overwrite the log file each time the program is run.
  493. overwrite = 0
  494.  
  495. # Configuration option log/level.
  496. # The level of log messages that are sent to the log file or syslog.
  497. # There are 6 syslog-like log levels currently in use: 2 to 7 inclusive.
  498. # 7 is the most verbose (LOG_DEBUG).
  499. level = 0
  500.  
  501. # Configuration option log/indent.
  502. # Indent messages according to their severity.
  503. indent = 1
  504.  
  505. # Configuration option log/command_names.
  506. # Display the command name on each line of output.
  507. command_names = 0
  508.  
  509. # Configuration option log/prefix.
  510. # A prefix to use before the log message text.
  511. # (After the command name, if selected).
  512. # Two spaces allows you to see/grep the severity of each message.
  513. # To make the messages look similar to the original LVM tools use:
  514. # indent = 0, command_names = 1, prefix = " -- "
  515. prefix = " "
  516.  
  517. # Configuration option log/activation.
  518. # Log messages during activation.
  519. # Don't use this in low memory situations (can deadlock).
  520. activation = 0
  521.  
  522. # Configuration option log/debug_classes.
  523. # Select log messages by class.
  524. # Some debugging messages are assigned to a class and only appear in
  525. # debug output if the class is listed here. Classes currently
  526. # available: memory, devices, activation, allocation, lvmetad,
  527. # metadata, cache, locking, lvmpolld. Use "all" to see everything.
  528. debug_classes = [ "memory", "devices", "activation", "allocation", "lvmetad", "metadata", "cache", "locking", "lvmpolld" ]
  529. }
  530.  
  531. # Configuration section backup.
  532. # How LVM metadata is backed up and archived.
  533. # In LVM, a 'backup' is a copy of the metadata for the current system,
  534. # and an 'archive' contains old metadata configurations. They are
  535. # stored in a human readable text format.
  536. backup {
  537.  
  538. # Configuration option backup/backup.
  539. # Maintain a backup of the current metadata configuration.
  540. # Think very hard before turning this off!
  541. backup = 1
  542.  
  543. # Configuration option backup/backup_dir.
  544. # Location of the metadata backup files.
  545. # Remember to back up this directory regularly!
  546. backup_dir = "/etc/lvm/backup"
  547.  
  548. # Configuration option backup/archive.
  549. # Maintain an archive of old metadata configurations.
  550. # Think very hard before turning this off.
  551. archive = 1
  552.  
  553. # Configuration option backup/archive_dir.
  554. # Location of the metdata archive files.
  555. # Remember to back up this directory regularly!
  556. archive_dir = "/etc/lvm/archive"
  557.  
  558. # Configuration option backup/retain_min.
  559. # Minimum number of archives to keep.
  560. retain_min = 10
  561.  
  562. # Configuration option backup/retain_days.
  563. # Minimum number of days to keep archive files.
  564. retain_days = 30
  565. }
  566.  
  567. # Configuration section shell.
  568. # Settings for running LVM in shell (readline) mode.
  569. shell {
  570.  
  571. # Configuration option shell/history_size.
  572. # Number of lines of history to store in ~/.lvm_history.
  573. history_size = 100
  574. }
  575.  
  576. # Configuration section global.
  577. # Miscellaneous global LVM settings.
  578. global {
  579.  
  580. # Configuration option global/umask.
  581. # The file creation mask for any files and directories created.
  582. # Interpreted as octal if the first digit is zero.
  583. umask = 077
  584.  
  585. # Configuration option global/test.
  586. # No on-disk metadata changes will be made in test mode.
  587. # Equivalent to having the -t option on every command.
  588. test = 0
  589.  
  590. # Configuration option global/units.
  591. # Default value for --units argument.
  592. units = "h"
  593.  
  594. # Configuration option global/si_unit_consistency.
  595. # Distinguish between powers of 1024 and 1000 bytes.
  596. # The LVM commands distinguish between powers of 1024 bytes,
  597. # e.g. KiB, MiB, GiB, and powers of 1000 bytes, e.g. KB, MB, GB.
  598. # If scripts depend on the old behaviour, disable this setting
  599. # temporarily until they are updated.
  600. si_unit_consistency = 1
  601.  
  602. # Configuration option global/suffix.
  603. # Display unit suffix for sizes.
  604. # This setting has no effect if the units are in human-readable form
  605. # (global/units = "h") in which case the suffix is always displayed.
  606. suffix = 1
  607.  
  608. # Configuration option global/activation.
  609. # Enable/disable communication with the kernel device-mapper.
  610. # Disable to use the tools to manipulate LVM metadata without
  611. # activating any logical volumes. If the device-mapper driver
  612. # is not present in the kernel, disabling this should suppress
  613. # the error messages.
  614. activation = 1
  615.  
  616. # Configuration option global/fallback_to_lvm1.
  617. # Try running LVM1 tools if LVM cannot communicate with DM.
  618. # This option only applies to 2.4 kernels and is provided to help
  619. # switch between device-mapper kernels and LVM1 kernels. The LVM1
  620. # tools need to be installed with .lvm1 suffices, e.g. vgscan.lvm1.
  621. # They will stop working once the lvm2 on-disk metadata format is used.
  622. # This configuration option has an automatic default value.
  623. # fallback_to_lvm1 = 0
  624.  
  625. # Configuration option global/format.
  626. # The default metadata format that commands should use.
  627. # The -M 1|2 option overrides this setting.
  628. #
  629. # Accepted values:
  630. # lvm1
  631. # lvm2
  632. #
  633. # This configuration option has an automatic default value.
  634. # format = "lvm2"
  635.  
  636. # Configuration option global/format_libraries.
  637. # Shared libraries that process different metadata formats.
  638. # If support for LVM1 metadata was compiled as a shared library use
  639. # format_libraries = "liblvm2format1.so"
  640. # This configuration option does not have a default value defined.
  641.  
  642. # Configuration option global/segment_libraries.
  643. # This configuration option does not have a default value defined.
  644.  
  645. # Configuration option global/proc.
  646. # Location of proc filesystem.
  647. # This configuration option is advanced.
  648. proc = "/proc"
  649.  
  650. # Configuration option global/etc.
  651. # Location of /etc system configuration directory.
  652. etc = "/etc"
  653.  
  654. # Configuration option global/locking_type.
  655. # Type of locking to use.
  656. #
  657. # Accepted values:
  658. # 0
  659. # Turns off locking. Warning: this risks metadata corruption if
  660. # commands run concurrently.
  661. # 1
  662. # LVM uses local file-based locking, the standard mode.
  663. # 2
  664. # LVM uses the external shared library locking_library.
  665. # 3
  666. # LVM uses built-in clustered locking with clvmd.
  667. # This is incompatible with lvmetad. If use_lvmetad is enabled,
  668. # LVM prints a warning and disables lvmetad use.
  669. # 4
  670. # LVM uses read-only locking which forbids any operations that
  671. # might change metadata.
  672. # 5
  673. # Offers dummy locking for tools that do not need any locks.
  674. # You should not need to set this directly; the tools will select
  675. # when to use it instead of the configured locking_type.
  676. # Do not use lvmetad or the kernel device-mapper driver with this
  677. # locking type. It is used by the --readonly option that offers
  678. # read-only access to Volume Group metadata that cannot be locked
  679. # safely because it belongs to an inaccessible domain and might be
  680. # in use, for example a virtual machine image or a disk that is
  681. # shared by a clustered machine.
  682. #
  683. locking_type = 1
  684.  
  685. # Configuration option global/wait_for_locks.
  686. # When disabled, fail if a lock request would block.
  687. wait_for_locks = 1
  688.  
  689. # Configuration option global/fallback_to_clustered_locking.
  690. # Attempt to use built-in cluster locking if locking_type 2 fails.
  691. # If using external locking (type 2) and initialisation fails, with
  692. # this enabled, an attempt will be made to use the built-in clustered
  693. # locking. Disable this if using a customised locking_library.
  694. fallback_to_clustered_locking = 1
  695.  
  696. # Configuration option global/fallback_to_local_locking.
  697. # Use locking_type 1 (local) if locking_type 2 or 3 fail.
  698. # If an attempt to initialise type 2 or type 3 locking failed, perhaps
  699. # because cluster components such as clvmd are not running, with this
  700. # enabled, an attempt will be made to use local file-based locking
  701. # (type 1). If this succeeds, only commands against local VGs will
  702. # proceed. VGs marked as clustered will be ignored.
  703. fallback_to_local_locking = 1
  704.  
  705. # Configuration option global/locking_dir.
  706. # Directory to use for LVM command file locks.
  707. # Local non-LV directory that holds file-based locks while commands are
  708. # in progress. A directory like /tmp that may get wiped on reboot is OK.
  709. locking_dir = "/run/lock/lvm"
  710.  
  711. # Configuration option global/prioritise_write_locks.
  712. # Allow quicker VG write access during high volume read access.
  713. # When there are competing read-only and read-write access requests for
  714. # a volume group's metadata, instead of always granting the read-only
  715. # requests immediately, delay them to allow the read-write requests to
  716. # be serviced. Without this setting, write access may be stalled by a
  717. # high volume of read-only requests. This option only affects
  718. # locking_type 1 viz. local file-based locking.
  719. prioritise_write_locks = 1
  720.  
  721. # Configuration option global/library_dir.
  722. # Search this directory first for shared libraries.
  723. # This configuration option does not have a default value defined.
  724.  
  725. # Configuration option global/locking_library.
  726. # The external locking library to use for locking_type 2.
  727. # This configuration option has an automatic default value.
  728. # locking_library = "liblvm2clusterlock.so"
  729.  
  730. # Configuration option global/abort_on_internal_errors.
  731. # Abort a command that encounters an internal error.
  732. # Treat any internal errors as fatal errors, aborting the process that
  733. # encountered the internal error. Please only enable for debugging.
  734. abort_on_internal_errors = 0
  735.  
  736. # Configuration option global/detect_internal_vg_cache_corruption.
  737. # Internal verification of VG structures.
  738. # Check if CRC matches when a parsed VG is used multiple times. This
  739. # is useful to catch unexpected changes to cached VG structures.
  740. # Please only enable for debugging.
  741. detect_internal_vg_cache_corruption = 0
  742.  
  743. # Configuration option global/metadata_read_only.
  744. # No operations that change on-disk metadata are permitted.
  745. # Additionally, read-only commands that encounter metadata in need of
  746. # repair will still be allowed to proceed exactly as if the repair had
  747. # been performed (except for the unchanged vg_seqno). Inappropriate
  748. # use could mess up your system, so seek advice first!
  749. metadata_read_only = 0
  750.  
  751. # Configuration option global/mirror_segtype_default.
  752. # The segment type used by the short mirroring option -m.
  753. # The --type mirror|raid1 option overrides this setting.
  754. #
  755. # Accepted values:
  756. # mirror
  757. # The original RAID1 implementation from LVM/DM. It is
  758. # characterized by a flexible log solution (core, disk, mirrored),
  759. # and by the necessity to block I/O while handling a failure.
  760. # There is an inherent race in the dmeventd failure handling logic
  761. # with snapshots of devices using this type of RAID1 that in the
  762. # worst case could cause a deadlock. (Also see
  763. # devices/ignore_lvm_mirrors.)
  764. # raid1
  765. # This is a newer RAID1 implementation using the MD RAID1
  766. # personality through device-mapper. It is characterized by a
  767. # lack of log options. (A log is always allocated for every
  768. # device and they are placed on the same device as the image,
  769. # so no separate devices are required.) This mirror
  770. # implementation does not require I/O to be blocked while
  771. # handling a failure. This mirror implementation is not
  772. # cluster-aware and cannot be used in a shared (active/active)
  773. # fashion in a cluster.
  774. #
  775. mirror_segtype_default = "raid1"
  776.  
  777. # Configuration option global/raid10_segtype_default.
  778. # The segment type used by the -i -m combination.
  779. # The --type raid10|mirror option overrides this setting.
  780. # The --stripes/-i and --mirrors/-m options can both be specified
  781. # during the creation of a logical volume to use both striping and
  782. # mirroring for the LV. There are two different implementations.
  783. #
  784. # Accepted values:
  785. # raid10
  786. # LVM uses MD's RAID10 personality through DM. This is the
  787. # preferred option.
  788. # mirror
  789. # LVM layers the 'mirror' and 'stripe' segment types. The layering
  790. # is done by creating a mirror LV on top of striped sub-LVs,
  791. # effectively creating a RAID 0+1 array. The layering is suboptimal
  792. # in terms of providing redundancy and performance.
  793. #
  794. raid10_segtype_default = "raid10"
  795.  
  796. # Configuration option global/sparse_segtype_default.
  797. # The segment type used by the -V -L combination.
  798. # The --type snapshot|thin option overrides this setting.
  799. # The combination of -V and -L options creates a sparse LV. There are
  800. # two different implementations.
  801. #
  802. # Accepted values:
  803. # snapshot
  804. # The original snapshot implementation from LVM/DM. It uses an old
  805. # snapshot that mixes data and metadata within a single COW
  806. # storage volume and performs poorly when the size of stored data
  807. # passes hundreds of MB.
  808. # thin
  809. # A newer implementation that uses thin provisioning. It has a
  810. # bigger minimal chunk size (64KiB) and uses a separate volume for
  811. # metadata. It has better performance, especially when more data
  812. # is used. It also supports full snapshots.
  813. #
  814. sparse_segtype_default = "thin"
  815.  
  816. # Configuration option global/lvdisplay_shows_full_device_path.
  817. # Enable this to reinstate the previous lvdisplay name format.
  818. # The default format for displaying LV names in lvdisplay was changed
  819. # in version 2.02.89 to show the LV name and path separately.
  820. # Previously this was always shown as /dev/vgname/lvname even when that
  821. # was never a valid path in the /dev filesystem.
  822. # This configuration option has an automatic default value.
  823. # lvdisplay_shows_full_device_path = 0
  824.  
  825. # Configuration option global/use_lvmetad.
  826. # Use lvmetad to cache metadata and reduce disk scanning.
  827. # When enabled (and running), lvmetad provides LVM commands with VG
  828. # metadata and PV state. LVM commands then avoid reading this
  829. # information from disks which can be slow. When disabled (or not
  830. # running), LVM commands fall back to scanning disks to obtain VG
  831. # metadata. lvmetad is kept updated via udev rules which must be set
  832. # up for LVM to work correctly. (The udev rules should be installed
  833. # by default.) Without a proper udev setup, changes in the system's
  834. # block device configuration will be unknown to LVM, and ignored
  835. # until a manual 'pvscan --cache' is run. If lvmetad was running
  836. # while use_lvmetad was disabled, it must be stopped, use_lvmetad
  837. # enabled, and then started. When using lvmetad, LV activation is
  838. # switched to an automatic, event-based mode. In this mode, LVs are
  839. # activated based on incoming udev events that inform lvmetad when
  840. # PVs appear on the system. When a VG is complete (all PVs present),
  841. # it is auto-activated. The auto_activation_volume_list setting
  842. # controls which LVs are auto-activated (all by default.)
  843. # When lvmetad is updated (automatically by udev events, or directly
  844. # by pvscan --cache), devices/filter is ignored and all devices are
  845. # scanned by default. lvmetad always keeps unfiltered information
  846. # which is provided to LVM commands. Each LVM command then filters
  847. # based on devices/filter. This does not apply to other, non-regexp,
  848. # filtering settings: component filters such as multipath and MD
  849. # are checked during pvscan --cache. To filter a device and prevent
  850. # scanning from the LVM system entirely, including lvmetad, use
  851. # devices/global_filter.
  852. use_lvmetad = 0
  853.  
  854. # Configuration option global/use_lvmlockd.
  855. # Use lvmlockd for locking among hosts using LVM on shared storage.
  856. # See lvmlockd(8) for more information.
  857. use_lvmlockd = 0
  858.  
  859. # Configuration option global/lvmlockd_lock_retries.
  860. # Retry lvmlockd lock requests this many times.
  861. # This configuration option has an automatic default value.
  862. # lvmlockd_lock_retries = 3
  863.  
  864. # Configuration option global/sanlock_lv_extend.
  865. # Size in MiB to extend the internal LV holding sanlock locks.
  866. # The internal LV holds locks for each LV in the VG, and after enough
  867. # LVs have been created, the internal LV needs to be extended. lvcreate
  868. # will automatically extend the internal LV when needed by the amount
  869. # specified here. Setting this to 0 disables the automatic extension
  870. # and can cause lvcreate to fail.
  871. # This configuration option has an automatic default value.
  872. # sanlock_lv_extend = 256
  873.  
  874. # Configuration option global/thin_check_executable.
  875. # The full path to the thin_check command.
  876. # LVM uses this command to check that a thin metadata device is in a
  877. # usable state. When a thin pool is activated and after it is
  878. # deactivated, this command is run. Activation will only proceed if
  879. # the command has an exit status of 0. Set to "" to skip this check.
  880. # (Not recommended.) Also see thin_check_options.
  881. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  882. # This configuration option has an automatic default value.
  883. # thin_check_executable = "/usr/bin/thin_check"
  884.  
  885. # Configuration option global/thin_dump_executable.
  886. # The full path to the thin_dump command.
  887. # LVM uses this command to dump thin pool metadata.
  888. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  889. # This configuration option has an automatic default value.
  890. # thin_dump_executable = "/usr/bin/thin_dump"
  891.  
  892. # Configuration option global/thin_repair_executable.
  893. # The full path to the thin_repair command.
  894. # LVM uses this command to repair a thin metadata device if it is in
  895. # an unusable state. Also see thin_repair_options.
  896. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  897. # This configuration option has an automatic default value.
  898. # thin_repair_executable = "/usr/bin/thin_repair"
  899.  
  900. # Configuration option global/thin_check_options.
  901. # List of options passed to the thin_check command.
  902. # With thin_check version 2.1 or newer you can add the option
  903. # --ignore-non-fatal-errors to let it pass through ignorable errors
  904. # and fix them later. With thin_check version 3.2 or newer you should
  905. # include the option --clear-needs-check-flag.
  906. # This configuration option has an automatic default value.
  907. # thin_check_options = [ "-q", "--clear-needs-check-flag" ]
  908.  
  909. # Configuration option global/thin_repair_options.
  910. # List of options passed to the thin_repair command.
  911. # This configuration option has an automatic default value.
  912. # thin_repair_options = [ "" ]
  913.  
  914. # Configuration option global/thin_disabled_features.
  915. # Features to not use in the thin driver.
  916. # This can be helpful for testing, or to avoid using a feature that is
  917. # causing problems. Features include: block_size, discards,
  918. # discards_non_power_2, external_origin, metadata_resize,
  919. # external_origin_extend, error_if_no_space.
  920. #
  921. # Example
  922. # thin_disabled_features = [ "discards", "block_size" ]
  923. #
  924. # This configuration option does not have a default value defined.
  925.  
  926. # Configuration option global/cache_disabled_features.
  927. # Features to not use in the cache driver.
  928. # This can be helpful for testing, or to avoid using a feature that is
  929. # causing problems. Features include: policy_mq, policy_smq.
  930. #
  931. # Example
  932. # cache_disabled_features = [ "policy_smq" ]
  933. #
  934. # This configuration option does not have a default value defined.
  935.  
  936. # Configuration option global/cache_check_executable.
  937. # The full path to the cache_check command.
  938. # LVM uses this command to check that a cache metadata device is in a
  939. # usable state. When a cached LV is activated and after it is
  940. # deactivated, this command is run. Activation will only proceed if the
  941. # command has an exit status of 0. Set to "" to skip this check.
  942. # (Not recommended.) Also see cache_check_options.
  943. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  944. # This configuration option has an automatic default value.
  945. # cache_check_executable = "/usr/bin/cache_check"
  946.  
  947. # Configuration option global/cache_dump_executable.
  948. # The full path to the cache_dump command.
  949. # LVM uses this command to dump cache pool metadata.
  950. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  951. # This configuration option has an automatic default value.
  952. # cache_dump_executable = "/usr/bin/cache_dump"
  953.  
  954. # Configuration option global/cache_repair_executable.
  955. # The full path to the cache_repair command.
  956. # LVM uses this command to repair a cache metadata device if it is in
  957. # an unusable state. Also see cache_repair_options.
  958. # (See package device-mapper-persistent-data or thin-provisioning-tools)
  959. # This configuration option has an automatic default value.
  960. # cache_repair_executable = "/usr/bin/cache_repair"
  961.  
  962. # Configuration option global/cache_check_options.
  963. # List of options passed to the cache_check command.
  964. # With cache_check version 5.0 or newer you should include the option
  965. # --clear-needs-check-flag.
  966. # This configuration option has an automatic default value.
  967. # cache_check_options = [ "-q", "--clear-needs-check-flag" ]
  968.  
  969. # Configuration option global/cache_repair_options.
  970. # List of options passed to the cache_repair command.
  971. # This configuration option has an automatic default value.
  972. # cache_repair_options = [ "" ]
  973.  
  974. # Configuration option global/system_id_source.
  975. # The method LVM uses to set the local system ID.
  976. # Volume Groups can also be given a system ID (by vgcreate, vgchange,
  977. # or vgimport.) A VG on shared storage devices is accessible only to
  978. # the host with a matching system ID. See 'man lvmsystemid' for
  979. # information on limitations and correct usage.
  980. #
  981. # Accepted values:
  982. # none
  983. # The host has no system ID.
  984. # lvmlocal
  985. # Obtain the system ID from the system_id setting in the 'local'
  986. # section of an lvm configuration file, e.g. lvmlocal.conf.
  987. # uname
  988. # Set the system ID from the hostname (uname) of the system.
  989. # System IDs beginning localhost are not permitted.
  990. # machineid
  991. # Use the contents of the machine-id file to set the system ID.
  992. # Some systems create this file at installation time.
  993. # See 'man machine-id' and global/etc.
  994. # file
  995. # Use the contents of another file (system_id_file) to set the
  996. # system ID.
  997. #
  998. system_id_source = "none"
  999.  
  1000. # Configuration option global/system_id_file.
  1001. # The full path to the file containing a system ID.
  1002. # This is used when system_id_source is set to 'file'.
  1003. # Comments starting with the character # are ignored.
  1004. # This configuration option does not have a default value defined.
  1005.  
  1006. # Configuration option global/use_lvmpolld.
  1007. # Use lvmpolld to supervise long running LVM commands.
  1008. # When enabled, control of long running LVM commands is transferred
  1009. # from the original LVM command to the lvmpolld daemon. This allows
  1010. # the operation to continue independent of the original LVM command.
  1011. # After lvmpolld takes over, the LVM command displays the progress
  1012. # of the ongoing operation. lvmpolld itself runs LVM commands to
  1013. # manage the progress of ongoing operations. lvmpolld can be used as
  1014. # a native systemd service, which allows it to be started on demand,
  1015. # and to use its own control group. When this option is disabled, LVM
  1016. # commands will supervise long running operations by forking themselves.
  1017. use_lvmpolld = 0
  1018. }
  1019.  
  1020. # Configuration section activation.
  1021. activation {
  1022.  
  1023. # Configuration option activation/checks.
  1024. # Perform internal checks of libdevmapper operations.
  1025. # Useful for debugging problems with activation. Some of the checks may
  1026. # be expensive, so it's best to use this only when there seems to be a
  1027. # problem.
  1028. checks = 0
  1029.  
  1030. # Configuration option activation/udev_sync.
  1031. # Use udev notifications to synchronize udev and LVM.
  1032. # The --nodevsync option overrides this setting.
  1033. # When disabled, LVM commands will not wait for notifications from
  1034. # udev, but continue irrespective of any possible udev processing in
  1035. # the background. Only use this if udev is not running or has rules
  1036. # that ignore the devices LVM creates. If enabled when udev is not
  1037. # running, and LVM processes are waiting for udev, run the command
  1038. # 'dmsetup udevcomplete_all' to wake them up.
  1039. udev_sync = 1
  1040.  
  1041. # Configuration option activation/udev_rules.
  1042. # Use udev rules to manage LV device nodes and symlinks.
  1043. # When disabled, LVM will manage the device nodes and symlinks for
  1044. # active LVs itself. Manual intervention may be required if this
  1045. # setting is changed while LVs are active.
  1046. udev_rules = 1
  1047.  
  1048. # Configuration option activation/verify_udev_operations.
  1049. # Use extra checks in LVM to verify udev operations.
  1050. # This enables additional checks (and if necessary, repairs) on entries
  1051. # in the device directory after udev has completed processing its
  1052. # events. Useful for diagnosing problems with LVM/udev interactions.
  1053. verify_udev_operations = 0
  1054.  
  1055. # Configuration option activation/retry_deactivation.
  1056. # Retry failed LV deactivation.
  1057. # If LV deactivation fails, LVM will retry for a few seconds before
  1058. # failing. This may happen because a process run from a quick udev rule
  1059. # temporarily opened the device.
  1060. retry_deactivation = 1
  1061.  
  1062. # Configuration option activation/missing_stripe_filler.
  1063. # Method to fill missing stripes when activating an incomplete LV.
  1064. # Using 'error' will make inaccessible parts of the device return I/O
  1065. # errors on access. You can instead use a device path, in which case,
  1066. # that device will be used in place of missing stripes. Using anything
  1067. # other than 'error' with mirrored or snapshotted volumes is likely to
  1068. # result in data corruption.
  1069. # This configuration option is advanced.
  1070. missing_stripe_filler = "error"
  1071.  
  1072. # Configuration option activation/use_linear_target.
  1073. # Use the linear target to optimize single stripe LVs.
  1074. # When disabled, the striped target is used. The linear target is an
  1075. # optimised version of the striped target that only handles a single
  1076. # stripe.
  1077. use_linear_target = 1
  1078.  
  1079. # Configuration option activation/reserved_stack.
  1080. # Stack size in KiB to reserve for use while devices are suspended.
  1081. # Insufficent reserve risks I/O deadlock during device suspension.
  1082. reserved_stack = 64
  1083.  
  1084. # Configuration option activation/reserved_memory.
  1085. # Memory size in KiB to reserve for use while devices are suspended.
  1086. # Insufficent reserve risks I/O deadlock during device suspension.
  1087. reserved_memory = 8192
  1088.  
  1089. # Configuration option activation/process_priority.
  1090. # Nice value used while devices are suspended.
  1091. # Use a high priority so that LVs are suspended
  1092. # for the shortest possible time.
  1093. process_priority = -18
  1094.  
  1095. # Configuration option activation/volume_list.
  1096. # Only LVs selected by this list are activated.
  1097. # If this list is defined, an LV is only activated if it matches an
  1098. # entry in this list. If this list is undefined, it imposes no limits
  1099. # on LV activation (all are allowed).
  1100. #
  1101. # Accepted values:
  1102. # vgname
  1103. # The VG name is matched exactly and selects all LVs in the VG.
  1104. # vgname/lvname
  1105. # The VG name and LV name are matched exactly and selects the LV.
  1106. # @tag
  1107. # Selects an LV if the specified tag matches a tag set on the LV
  1108. # or VG.
  1109. # @*
  1110. # Selects an LV if a tag defined on the host is also set on the LV
  1111. # or VG. See tags/hosttags. If any host tags exist but volume_list
  1112. # is not defined, a default single-entry list containing '@*'
  1113. # is assumed.
  1114. #
  1115. # Example
  1116. # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
  1117. #
  1118. # This configuration option does not have a default value defined.
  1119.  
  1120. # Configuration option activation/auto_activation_volume_list.
  1121. # Only LVs selected by this list are auto-activated.
  1122. # This list works like volume_list, but it is used only by
  1123. # auto-activation commands. It does not apply to direct activation
  1124. # commands. If this list is defined, an LV is only auto-activated
  1125. # if it matches an entry in this list. If this list is undefined, it
  1126. # imposes no limits on LV auto-activation (all are allowed.) If this
  1127. # list is defined and empty, i.e. "[]", then no LVs are selected for
  1128. # auto-activation. An LV that is selected by this list for
  1129. # auto-activation, must also be selected by volume_list (if defined)
  1130. # before it is activated. Auto-activation is an activation command that
  1131. # includes the 'a' argument: --activate ay or -a ay. The 'a' (auto)
  1132. # argument for auto-activation is meant to be used by activation
  1133. # commands that are run automatically by the system, as opposed to LVM
  1134. # commands run directly by a user. A user may also use the 'a' flag
  1135. # directly to perform auto-activation. Also see pvscan(8) for more
  1136. # information about auto-activation.
  1137. #
  1138. # Accepted values:
  1139. # vgname
  1140. # The VG name is matched exactly and selects all LVs in the VG.
  1141. # vgname/lvname
  1142. # The VG name and LV name are matched exactly and selects the LV.
  1143. # @tag
  1144. # Selects an LV if the specified tag matches a tag set on the LV
  1145. # or VG.
  1146. # @*
  1147. # Selects an LV if a tag defined on the host is also set on the LV
  1148. # or VG. See tags/hosttags. If any host tags exist but volume_list
  1149. # is not defined, a default single-entry list containing '@*'
  1150. # is assumed.
  1151. #
  1152. # Example
  1153. # auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
  1154. #
  1155. # This configuration option does not have a default value defined.
  1156.  
  1157. # Configuration option activation/read_only_volume_list.
  1158. # LVs in this list are activated in read-only mode.
  1159. # If this list is defined, each LV that is to be activated is checked
  1160. # against this list, and if it matches, it is activated in read-only
  1161. # mode. This overrides the permission setting stored in the metadata,
  1162. # e.g. from --permission rw.
  1163. #
  1164. # Accepted values:
  1165. # vgname
  1166. # The VG name is matched exactly and selects all LVs in the VG.
  1167. # vgname/lvname
  1168. # The VG name and LV name are matched exactly and selects the LV.
  1169. # @tag
  1170. # Selects an LV if the specified tag matches a tag set on the LV
  1171. # or VG.
  1172. # @*
  1173. # Selects an LV if a tag defined on the host is also set on the LV
  1174. # or VG. See tags/hosttags. If any host tags exist but volume_list
  1175. # is not defined, a default single-entry list containing '@*'
  1176. # is assumed.
  1177. #
  1178. # Example
  1179. # read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
  1180. #
  1181. # This configuration option does not have a default value defined.
  1182.  
  1183. # Configuration option activation/raid_region_size.
  1184. # Size in KiB of each raid or mirror synchronization region.
  1185. # For raid or mirror segment types, this is the amount of data that is
  1186. # copied at once when initializing, or moved at once by pvmove.
  1187. raid_region_size = 512
  1188.  
  1189. # Configuration option activation/error_when_full.
  1190. # Return errors if a thin pool runs out of space.
  1191. # The --errorwhenfull option overrides this setting.
  1192. # When enabled, writes to thin LVs immediately return an error if the
  1193. # thin pool is out of data space. When disabled, writes to thin LVs
  1194. # are queued if the thin pool is out of space, and processed when the
  1195. # thin pool data space is extended. New thin pools are assigned the
  1196. # behavior defined here.
  1197. # This configuration option has an automatic default value.
  1198. # error_when_full = 0
  1199.  
  1200. # Configuration option activation/readahead.
  1201. # Setting to use when there is no readahead setting in metadata.
  1202. #
  1203. # Accepted values:
  1204. # none
  1205. # Disable readahead.
  1206. # auto
  1207. # Use default value chosen by kernel.
  1208. #
  1209. readahead = "auto"
  1210.  
  1211. # Configuration option activation/raid_fault_policy.
  1212. # Defines how a device failure in a RAID LV is handled.
  1213. # This includes LVs that have the following segment types:
  1214. # raid1, raid4, raid5*, and raid6*.
  1215. # If a device in the LV fails, the policy determines the steps
  1216. # performed by dmeventd automatically, and the steps perfomed by the
  1217. # manual command lvconvert --repair --use-policies.
  1218. # Automatic handling requires dmeventd to be monitoring the LV.
  1219. #
  1220. # Accepted values:
  1221. # warn
  1222. # Use the system log to warn the user that a device in the RAID LV
  1223. # has failed. It is left to the user to run lvconvert --repair
  1224. # manually to remove or replace the failed device. As long as the
  1225. # number of failed devices does not exceed the redundancy of the LV
  1226. # (1 device for raid4/5, 2 for raid6), the LV will remain usable.
  1227. # allocate
  1228. # Attempt to use any extra physical volumes in the VG as spares and
  1229. # replace faulty devices.
  1230. #
  1231. raid_fault_policy = "warn"
  1232.  
  1233. # Configuration option activation/mirror_image_fault_policy.
  1234. # Defines how a device failure in a 'mirror' LV is handled.
  1235. # An LV with the 'mirror' segment type is composed of mirror images
  1236. # (copies) and a mirror log. A disk log ensures that a mirror LV does
  1237. # not need to be re-synced (all copies made the same) every time a
  1238. # machine reboots or crashes. If a device in the LV fails, this policy
  1239. # determines the steps perfomed by dmeventd automatically, and the steps
  1240. # performed by the manual command lvconvert --repair --use-policies.
  1241. # Automatic handling requires dmeventd to be monitoring the LV.
  1242. #
  1243. # Accepted values:
  1244. # remove
  1245. # Simply remove the faulty device and run without it. If the log
  1246. # device fails, the mirror would convert to using an in-memory log.
  1247. # This means the mirror will not remember its sync status across
  1248. # crashes/reboots and the entire mirror will be re-synced. If a
  1249. # mirror image fails, the mirror will convert to a non-mirrored
  1250. # device if there is only one remaining good copy.
  1251. # allocate
  1252. # Remove the faulty device and try to allocate space on a new
  1253. # device to be a replacement for the failed device. Using this
  1254. # policy for the log is fast and maintains the ability to remember
  1255. # sync state through crashes/reboots. Using this policy for a
  1256. # mirror device is slow, as it requires the mirror to resynchronize
  1257. # the devices, but it will preserve the mirror characteristic of
  1258. # the device. This policy acts like 'remove' if no suitable device
  1259. # and space can be allocated for the replacement.
  1260. # allocate_anywhere
  1261. # Not yet implemented. Useful to place the log device temporarily
  1262. # on the same physical volume as one of the mirror images. This
  1263. # policy is not recommended for mirror devices since it would break
  1264. # the redundant nature of the mirror. This policy acts like
  1265. # 'remove' if no suitable device and space can be allocated for the
  1266. # replacement.
  1267. #
  1268. mirror_image_fault_policy = "remove"
  1269.  
  1270. # Configuration option activation/mirror_log_fault_policy.
  1271. # Defines how a device failure in a 'mirror' log LV is handled.
  1272. # The mirror_image_fault_policy description for mirrored LVs also
  1273. # applies to mirrored log LVs.
  1274. mirror_log_fault_policy = "allocate"
  1275.  
  1276. # Configuration option activation/snapshot_autoextend_threshold.
  1277. # Auto-extend a snapshot when its usage exceeds this percent.
  1278. # Setting this to 100 disables automatic extension.
  1279. # The minimum value is 50 (a smaller value is treated as 50.)
  1280. # Also see snapshot_autoextend_percent.
  1281. # Automatic extension requires dmeventd to be monitoring the LV.
  1282. #
  1283. # Example
  1284. # Using 70% autoextend threshold and 20% autoextend size, when a 1G
  1285. # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
  1286. # 840M, it is extended to 1.44G:
  1287. # snapshot_autoextend_threshold = 70
  1288. #
  1289. snapshot_autoextend_threshold = 100
  1290.  
  1291. # Configuration option activation/snapshot_autoextend_percent.
  1292. # Auto-extending a snapshot adds this percent extra space.
  1293. # The amount of additional space added to a snapshot is this
  1294. # percent of its current size.
  1295. #
  1296. # Example
  1297. # Using 70% autoextend threshold and 20% autoextend size, when a 1G
  1298. # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
  1299. # 840M, it is extended to 1.44G:
  1300. # snapshot_autoextend_percent = 20
  1301. #
  1302. snapshot_autoextend_percent = 20
  1303.  
  1304. # Configuration option activation/thin_pool_autoextend_threshold.
  1305. # Auto-extend a thin pool when its usage exceeds this percent.
  1306. # Setting this to 100 disables automatic extension.
  1307. # The minimum value is 50 (a smaller value is treated as 50.)
  1308. # Also see thin_pool_autoextend_percent.
  1309. # Automatic extension requires dmeventd to be monitoring the LV.
  1310. #
  1311. # Example
  1312. # Using 70% autoextend threshold and 20% autoextend size, when a 1G
  1313. # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
  1314. # 840M, it is extended to 1.44G:
  1315. # thin_pool_autoextend_threshold = 70
  1316. #
  1317. thin_pool_autoextend_threshold = 100
  1318.  
  1319. # Configuration option activation/thin_pool_autoextend_percent.
  1320. # Auto-extending a thin pool adds this percent extra space.
  1321. # The amount of additional space added to a thin pool is this
  1322. # percent of its current size.
  1323. #
  1324. # Example
  1325. # Using 70% autoextend threshold and 20% autoextend size, when a 1G
  1326. # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
  1327. # 840M, it is extended to 1.44G:
  1328. # thin_pool_autoextend_percent = 20
  1329. #
  1330. thin_pool_autoextend_percent = 20
  1331.  
  1332. # Configuration option activation/mlock_filter.
  1333. # Do not mlock these memory areas.
  1334. # While activating devices, I/O to devices being (re)configured is
  1335. # suspended. As a precaution against deadlocks, LVM pins memory it is
  1336. # using so it is not paged out, and will not require I/O to reread.
  1337. # Groups of pages that are known not to be accessed during activation
  1338. # do not need to be pinned into memory. Each string listed in this
  1339. # setting is compared against each line in /proc/self/maps, and the
  1340. # pages corresponding to lines that match are not pinned. On some
  1341. # systems, locale-archive was found to make up over 80% of the memory
  1342. # used by the process.
  1343. #
  1344. # Example
  1345. # mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ]
  1346. #
  1347. # This configuration option is advanced.
  1348. # This configuration option does not have a default value defined.
  1349.  
  1350. # Configuration option activation/use_mlockall.
  1351. # Use the old behavior of mlockall to pin all memory.
  1352. # Prior to version 2.02.62, LVM used mlockall() to pin the whole
  1353. # process's memory while activating devices.
  1354. use_mlockall = 0
  1355.  
  1356. # Configuration option activation/monitoring.
  1357. # Monitor LVs that are activated.
  1358. # The --ignoremonitoring option overrides this setting.
  1359. # When enabled, LVM will ask dmeventd to monitor activated LVs.
  1360. monitoring = 1
  1361.  
  1362. # Configuration option activation/polling_interval.
  1363. # Check pvmove or lvconvert progress at this interval (seconds).
  1364. # When pvmove or lvconvert must wait for the kernel to finish
  1365. # synchronising or merging data, they check and report progress at
  1366. # intervals of this number of seconds. If this is set to 0 and there
  1367. # is only one thing to wait for, there are no progress reports, but
  1368. # the process is awoken immediately once the operation is complete.
  1369. polling_interval = 15
  1370.  
  1371. # Configuration option activation/auto_set_activation_skip.
  1372. # Set the activation skip flag on new thin snapshot LVs.
  1373. # The --setactivationskip option overrides this setting.
  1374. # An LV can have a persistent 'activation skip' flag. The flag causes
  1375. # the LV to be skipped during normal activation. The lvchange/vgchange
  1376. # -K option is required to activate LVs that have the activation skip
  1377. # flag set. When this setting is enabled, the activation skip flag is
  1378. # set on new thin snapshot LVs.
  1379. # This configuration option has an automatic default value.
  1380. # auto_set_activation_skip = 1
  1381.  
  1382. # Configuration option activation/activation_mode.
  1383. # How LVs with missing devices are activated.
  1384. # The --activationmode option overrides this setting.
  1385. #
  1386. # Accepted values:
  1387. # complete
  1388. # Only allow activation of an LV if all of the Physical Volumes it
  1389. # uses are present. Other PVs in the Volume Group may be missing.
  1390. # degraded
  1391. # Like complete, but additionally RAID LVs of segment type raid1,
  1392. # raid4, raid5, radid6 and raid10 will be activated if there is no
  1393. # data loss, i.e. they have sufficient redundancy to present the
  1394. # entire addressable range of the Logical Volume.
  1395. # partial
  1396. # Allows the activation of any LV even if a missing or failed PV
  1397. # could cause data loss with a portion of the LV inaccessible.
  1398. # This setting should not normally be used, but may sometimes
  1399. # assist with data recovery.
  1400. #
  1401. activation_mode = "degraded"
  1402.  
  1403. # Configuration option activation/lock_start_list.
  1404. # Locking is started only for VGs selected by this list.
  1405. # The rules are the same as those for volume_list.
  1406. # This configuration option does not have a default value defined.
  1407.  
  1408. # Configuration option activation/auto_lock_start_list.
  1409. # Locking is auto-started only for VGs selected by this list.
  1410. # The rules are the same as those for auto_activation_volume_list.
  1411. # This configuration option does not have a default value defined.
  1412. }
  1413.  
  1414. # Configuration section metadata.
  1415. # This configuration section has an automatic default value.
  1416. # metadata {
  1417.  
  1418. # Configuration option metadata/check_pv_device_sizes.
  1419. # Check device sizes are not smaller than corresponding PV sizes.
  1420. # If device size is less than corresponding PV size found in metadata,
  1421. # there is always a risk of data loss. If this option is set, then LVM
  1422. # issues a warning message each time it finds that the device size is
  1423. # less than corresponding PV size. You should not disable this unless
  1424. # you are absolutely sure about what you are doing!
  1425. # This configuration option is advanced.
  1426. # This configuration option has an automatic default value.
  1427. # check_pv_device_sizes = 1
  1428.  
  1429. # Configuration option metadata/pvmetadatacopies.
  1430. # Number of copies of metadata to store on each PV.
  1431. # The --pvmetadatacopies option overrides this setting.
  1432. #
  1433. # Accepted values:
  1434. # 2
  1435. # Two copies of the VG metadata are stored on the PV, one at the
  1436. # front of the PV, and one at the end.
  1437. # 1
  1438. # One copy of VG metadata is stored at the front of the PV.
  1439. # 0
  1440. # No copies of VG metadata are stored on the PV. This may be
  1441. # useful for VGs containing large numbers of PVs.
  1442. #
  1443. # This configuration option is advanced.
  1444. # This configuration option has an automatic default value.
  1445. # pvmetadatacopies = 1
  1446.  
  1447. # Configuration option metadata/vgmetadatacopies.
  1448. # Number of copies of metadata to maintain for each VG.
  1449. # The --vgmetadatacopies option overrides this setting.
  1450. # If set to a non-zero value, LVM automatically chooses which of the
  1451. # available metadata areas to use to achieve the requested number of
  1452. # copies of the VG metadata. If you set a value larger than the the
  1453. # total number of metadata areas available, then metadata is stored in
  1454. # them all. The value 0 (unmanaged) disables this automatic management
  1455. # and allows you to control which metadata areas are used at the
  1456. # individual PV level using pvchange --metadataignore y|n.
  1457. # This configuration option has an automatic default value.
  1458. # vgmetadatacopies = 0
  1459.  
  1460. # Configuration option metadata/pvmetadatasize.
  1461. # Approximate number of sectors to use for each metadata copy.
  1462. # VGs with large numbers of PVs or LVs, or VGs containing complex LV
  1463. # structures, may need additional space for VG metadata. The metadata
  1464. # areas are treated as circular buffers, so unused space becomes filled
  1465. # with an archive of the most recent previous versions of the metadata.
  1466. # This configuration option has an automatic default value.
  1467. # pvmetadatasize = 255
  1468.  
  1469. # Configuration option metadata/pvmetadataignore.
  1470. # Ignore metadata areas on a new PV.
  1471. # The --metadataignore option overrides this setting.
  1472. # If metadata areas on a PV are ignored, LVM will not store metadata
  1473. # in them.
  1474. # This configuration option is advanced.
  1475. # This configuration option has an automatic default value.
  1476. # pvmetadataignore = 0
  1477.  
  1478. # Configuration option metadata/stripesize.
  1479. # This configuration option is advanced.
  1480. # This configuration option has an automatic default value.
  1481. # stripesize = 64
  1482.  
  1483. # Configuration option metadata/dirs.
  1484. # Directories holding live copies of text format metadata.
  1485. # These directories must not be on logical volumes!
  1486. # It's possible to use LVM with a couple of directories here,
  1487. # preferably on different (non-LV) filesystems, and with no other
  1488. # on-disk metadata (pvmetadatacopies = 0). Or this can be in addition
  1489. # to on-disk metadata areas. The feature was originally added to
  1490. # simplify testing and is not supported under low memory situations -
  1491. # the machine could lock up. Never edit any files in these directories
  1492. # by hand unless you are absolutely sure you know what you are doing!
  1493. # Use the supplied toolset to make changes (e.g. vgcfgrestore).
  1494. #
  1495. # Example
  1496. # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
  1497. #
  1498. # This configuration option is advanced.
  1499. # This configuration option does not have a default value defined.
  1500. # }
  1501.  
  1502. # Configuration section report.
  1503. # LVM report command output formatting.
  1504. # This configuration section has an automatic default value.
  1505. # report {
  1506.  
  1507. # Configuration option report/compact_output.
  1508. # Do not print empty values for all report fields.
  1509. # If enabled, all fields that don't have a value set for any of the
  1510. # rows reported are skipped and not printed. Compact output is
  1511. # applicable only if report/buffered is enabled. If you need to
  1512. # compact only specified fields, use compact_output=0 and define
  1513. # report/compact_output_cols configuration setting instead.
  1514. # This configuration option has an automatic default value.
  1515. # compact_output = 0
  1516.  
  1517. # Configuration option report/compact_output_cols.
  1518. # Do not print empty values for specified report fields.
  1519. # If defined, specified fields that don't have a value set for any
  1520. # of the rows reported are skipped and not printed. Compact output
  1521. # is applicable only if report/buffered is enabled. If you need to
  1522. # compact all fields, use compact_output=1 instead in which case
  1523. # the compact_output_cols setting is then ignored.
  1524. # This configuration option has an automatic default value.
  1525. # compact_output_cols = ""
  1526.  
  1527. # Configuration option report/aligned.
  1528. # Align columns in report output.
  1529. # This configuration option has an automatic default value.
  1530. # aligned = 1
  1531.  
  1532. # Configuration option report/buffered.
  1533. # Buffer report output.
  1534. # When buffered reporting is used, the report's content is appended
  1535. # incrementally to include each object being reported until the report
  1536. # is flushed to output which normally happens at the end of command
  1537. # execution. Otherwise, if buffering is not used, each object is
  1538. # reported as soon as its processing is finished.
  1539. # This configuration option has an automatic default value.
  1540. # buffered = 1
  1541.  
  1542. # Configuration option report/headings.
  1543. # Show headings for columns on report.
  1544. # This configuration option has an automatic default value.
  1545. # headings = 1
  1546.  
  1547. # Configuration option report/separator.
  1548. # A separator to use on report after each field.
  1549. # This configuration option has an automatic default value.
  1550. # separator = " "
  1551.  
  1552. # Configuration option report/list_item_separator.
  1553. # A separator to use for list items when reported.
  1554. # This configuration option has an automatic default value.
  1555. # list_item_separator = ","
  1556.  
  1557. # Configuration option report/prefixes.
  1558. # Use a field name prefix for each field reported.
  1559. # This configuration option has an automatic default value.
  1560. # prefixes = 0
  1561.  
  1562. # Configuration option report/quoted.
  1563. # Quote field values when using field name prefixes.
  1564. # This configuration option has an automatic default value.
  1565. # quoted = 1
  1566.  
  1567. # Configuration option report/colums_as_rows.
  1568. # Output each column as a row.
  1569. # If set, this also implies report/prefixes=1.
  1570. # This configuration option has an automatic default value.
  1571. # colums_as_rows = 0
  1572.  
  1573. # Configuration option report/binary_values_as_numeric.
  1574. # Use binary values 0 or 1 instead of descriptive literal values.
  1575. # For columns that have exactly two valid values to report
  1576. # (not counting the 'unknown' value which denotes that the
  1577. # value could not be determined).
  1578. # This configuration option has an automatic default value.
  1579. # binary_values_as_numeric = 0
  1580.  
  1581. # Configuration option report/time_format.
  1582. # Set time format for fields reporting time values.
  1583. # Format specification is a string which may contain special character
  1584. # sequences and ordinary character sequences. Ordinary character
  1585. # sequences are copied verbatim. Each special character sequence is
  1586. # introduced by the '%' character and such sequence is then
  1587. # substituted with a value as described below.
  1588. #
  1589. # Accepted values:
  1590. # %a
  1591. # The abbreviated name of the day of the week according to the
  1592. # current locale.
  1593. # %A
  1594. # The full name of the day of the week according to the current
  1595. # locale.
  1596. # %b
  1597. # The abbreviated month name according to the current locale.
  1598. # %B
  1599. # The full month name according to the current locale.
  1600. # %c
  1601. # The preferred date and time representation for the current
  1602. # locale (alt E)
  1603. # %C
  1604. # The century number (year/100) as a 2-digit integer. (alt E)
  1605. # %d
  1606. # The day of the month as a decimal number (range 01 to 31).
  1607. # (alt O)
  1608. # %D
  1609. # Equivalent to %m/%d/%y. (For Americans only. Americans should
  1610. # note that in other countries%d/%m/%y is rather common. This
  1611. # means that in international context this format is ambiguous and
  1612. # should not be used.
  1613. # %e
  1614. # Like %d, the day of the month as a decimal number, but a leading
  1615. # zero is replaced by a space. (alt O)
  1616. # %E
  1617. # Modifier: use alternative local-dependent representation if
  1618. # available.
  1619. # %F
  1620. # Equivalent to %Y-%m-%d (the ISO 8601 date format).
  1621. # %G
  1622. # The ISO 8601 week-based year with century as adecimal number.
  1623. # The 4-digit year corresponding to the ISO week number (see %V).
  1624. # This has the same format and value as %Y, except that if the
  1625. # ISO week number belongs to the previous or next year, that year
  1626. # is used instead.
  1627. # %g
  1628. # Like %G, but without century, that is, with a 2-digit year
  1629. # (00-99).
  1630. # %h
  1631. # Equivalent to %b.
  1632. # %H
  1633. # The hour as a decimal number using a 24-hour clock
  1634. # (range 00 to 23). (alt O)
  1635. # %I
  1636. # The hour as a decimal number using a 12-hour clock
  1637. # (range 01 to 12). (alt O)
  1638. # %j
  1639. # The day of the year as a decimal number (range 001 to 366).
  1640. # %k
  1641. # The hour (24-hour clock) as a decimal number (range 0 to 23);
  1642. # single digits are preceded by a blank. (See also %H.)
  1643. # %l
  1644. # The hour (12-hour clock) as a decimal number (range 1 to 12);
  1645. # single digits are preceded by a blank. (See also %I.)
  1646. # %m
  1647. # The month as a decimal number (range 01 to 12). (alt O)
  1648. # %M
  1649. # The minute as a decimal number (range 00 to 59). (alt O)
  1650. # %O
  1651. # Modifier: use alternative numeric symbols.
  1652. # %p
  1653. # Either "AM" or "PM" according to the given time value,
  1654. # or the corresponding strings for the current locale. Noon is
  1655. # treated as "PM" and midnight as "AM".
  1656. # %P
  1657. # Like %p but in lowercase: "am" or "pm" or a corresponding
  1658. # string for the current locale.
  1659. # %r
  1660. # The time in a.m. or p.m. notation. In the POSIX locale this is
  1661. # equivalent to %I:%M:%S %p.
  1662. # %R
  1663. # The time in 24-hour notation (%H:%M). For a version including
  1664. # the seconds, see %T below.
  1665. # %s
  1666. # The number of seconds since the Epoch,
  1667. # 1970-01-01 00:00:00 +0000 (UTC)
  1668. # %S
  1669. # The second as a decimal number (range 00 to 60). (The range is
  1670. # up to 60 to allow for occasional leap seconds.) (alt O)
  1671. # %t
  1672. # A tab character.
  1673. # %T
  1674. # The time in 24-hour notation (%H:%M:%S).
  1675. # %u
  1676. # The day of the week as a decimal, range 1 to 7, Monday being 1.
  1677. # See also %w. (alt O)
  1678. # %U
  1679. # The week number of the current year as a decimal number,
  1680. # range 00 to 53, starting with the first Sunday as the first
  1681. # day of week 01. See also %V and %W. (alt O)
  1682. # %V
  1683. # The ISO 8601 week number of the current year as a decimal number,
  1684. # range 01 to 53, where week 1 is the first week that has at least
  1685. # 4 days in the new year. See also %U and %W. (alt O)
  1686. # %w
  1687. # The day of the week as a decimal, range 0 to 6, Sunday being 0.
  1688. # See also %u. (alt O)
  1689. # %W
  1690. # The week number of the current year as a decimal number,
  1691. # range 00 to 53, starting with the first Monday as the first day
  1692. # of week 01. (alt O)
  1693. # %x
  1694. # The preferred date representation for the current locale without
  1695. # the time. (alt E)
  1696. # %X
  1697. # The preferred time representation for the current locale without
  1698. # the date. (alt E)
  1699. # %y
  1700. # The year as a decimal number without a century (range 00 to 99).
  1701. # (alt E, alt O)
  1702. # %Y
  1703. # The year as a decimal number including the century. (alt E)
  1704. # %z
  1705. # The +hhmm or -hhmm numeric timezone (that is, the hour and minute
  1706. # offset from UTC).
  1707. # %Z
  1708. # The timezone name or abbreviation.
  1709. # %%
  1710. # A literal '%' character.
  1711. #
  1712. # This configuration option has an automatic default value.
  1713. # time_format = "%Y-%m-%d %T %z"
  1714.  
  1715. # Configuration option report/devtypes_sort.
  1716. # List of columns to sort by when reporting 'lvm devtypes' command.
  1717. # See 'lvm devtypes -o help' for the list of possible fields.
  1718. # This configuration option has an automatic default value.
  1719. # devtypes_sort = "devtype_name"
  1720.  
  1721. # Configuration option report/devtypes_cols.
  1722. # List of columns to report for 'lvm devtypes' command.
  1723. # See 'lvm devtypes -o help' for the list of possible fields.
  1724. # This configuration option has an automatic default value.
  1725. # devtypes_cols = "devtype_name,devtype_max_partitions,devtype_description"
  1726.  
  1727. # Configuration option report/devtypes_cols_verbose.
  1728. # List of columns to report for 'lvm devtypes' command in verbose mode.
  1729. # See 'lvm devtypes -o help' for the list of possible fields.
  1730. # This configuration option has an automatic default value.
  1731. # devtypes_cols_verbose = "devtype_name,devtype_max_partitions,devtype_description"
  1732.  
  1733. # Configuration option report/lvs_sort.
  1734. # List of columns to sort by when reporting 'lvs' command.
  1735. # See 'lvs -o help' for the list of possible fields.
  1736. # This configuration option has an automatic default value.
  1737. # lvs_sort = "vg_name,lv_name"
  1738.  
  1739. # Configuration option report/lvs_cols.
  1740. # List of columns to report for 'lvs' command.
  1741. # See 'lvs -o help' for the list of possible fields.
  1742. # This configuration option has an automatic default value.
  1743. # lvs_cols = "lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv"
  1744.  
  1745. # Configuration option report/lvs_cols_verbose.
  1746. # List of columns to report for 'lvs' command in verbose mode.
  1747. # See 'lvs -o help' for the list of possible fields.
  1748. # This configuration option has an automatic default value.
  1749. # lvs_cols_verbose = "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile"
  1750.  
  1751. # Configuration option report/vgs_sort.
  1752. # List of columns to sort by when reporting 'vgs' command.
  1753. # See 'vgs -o help' for the list of possible fields.
  1754. # This configuration option has an automatic default value.
  1755. # vgs_sort = "vg_name"
  1756.  
  1757. # Configuration option report/vgs_cols.
  1758. # List of columns to report for 'vgs' command.
  1759. # See 'vgs -o help' for the list of possible fields.
  1760. # This configuration option has an automatic default value.
  1761. # vgs_cols = "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
  1762.  
  1763. # Configuration option report/vgs_cols_verbose.
  1764. # List of columns to report for 'vgs' command in verbose mode.
  1765. # See 'vgs -o help' for the list of possible fields.
  1766. # This configuration option has an automatic default value.
  1767. # vgs_cols_verbose = "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile"
  1768.  
  1769. # Configuration option report/pvs_sort.
  1770. # List of columns to sort by when reporting 'pvs' command.
  1771. # See 'pvs -o help' for the list of possible fields.
  1772. # This configuration option has an automatic default value.
  1773. # pvs_sort = "pv_name"
  1774.  
  1775. # Configuration option report/pvs_cols.
  1776. # List of columns to report for 'pvs' command.
  1777. # See 'pvs -o help' for the list of possible fields.
  1778. # This configuration option has an automatic default value.
  1779. # pvs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
  1780.  
  1781. # Configuration option report/pvs_cols_verbose.
  1782. # List of columns to report for 'pvs' command in verbose mode.
  1783. # See 'pvs -o help' for the list of possible fields.
  1784. # This configuration option has an automatic default value.
  1785. # pvs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid"
  1786.  
  1787. # Configuration option report/segs_sort.
  1788. # List of columns to sort by when reporting 'lvs --segments' command.
  1789. # See 'lvs --segments -o help' for the list of possible fields.
  1790. # This configuration option has an automatic default value.
  1791. # segs_sort = "vg_name,lv_name,seg_start"
  1792.  
  1793. # Configuration option report/segs_cols.
  1794. # List of columns to report for 'lvs --segments' command.
  1795. # See 'lvs --segments -o help' for the list of possible fields.
  1796. # This configuration option has an automatic default value.
  1797. # segs_cols = "lv_name,vg_name,lv_attr,stripes,segtype,seg_size"
  1798.  
  1799. # Configuration option report/segs_cols_verbose.
  1800. # List of columns to report for 'lvs --segments' command in verbose mode.
  1801. # See 'lvs --segments -o help' for the list of possible fields.
  1802. # This configuration option has an automatic default value.
  1803. # segs_cols_verbose = "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
  1804.  
  1805. # Configuration option report/pvsegs_sort.
  1806. # List of columns to sort by when reporting 'pvs --segments' command.
  1807. # See 'pvs --segments -o help' for the list of possible fields.
  1808. # This configuration option has an automatic default value.
  1809. # pvsegs_sort = "pv_name,pvseg_start"
  1810.  
  1811. # Configuration option report/pvsegs_cols.
  1812. # List of columns to sort by when reporting 'pvs --segments' command.
  1813. # See 'pvs --segments -o help' for the list of possible fields.
  1814. # This configuration option has an automatic default value.
  1815. # pvsegs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size"
  1816.  
  1817. # Configuration option report/pvsegs_cols_verbose.
  1818. # List of columns to sort by when reporting 'pvs --segments' command in verbose mode.
  1819. # See 'pvs --segments -o help' for the list of possible fields.
  1820. # This configuration option has an automatic default value.
  1821. # pvsegs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges"
  1822.  
  1823. # Configuration option report/mark_hidden_devices.
  1824. # Use brackets [] to mark hidden devices.
  1825. # This configuration option has an automatic default value.
  1826. # mark_hidden_devices = 1
  1827. # }
  1828.  
  1829. # Configuration section dmeventd.
  1830. # Settings for the LVM event daemon.
  1831. dmeventd {
  1832.  
  1833. # Configuration option dmeventd/mirror_library.
  1834. # The library dmeventd uses when monitoring a mirror device.
  1835. # libdevmapper-event-lvm2mirror.so attempts to recover from
  1836. # failures. It removes failed devices from a volume group and
  1837. # reconfigures a mirror as necessary. If no mirror library is
  1838. # provided, mirrors are not monitored through dmeventd.
  1839. mirror_library = "libdevmapper-event-lvm2mirror.so"
  1840.  
  1841. # Configuration option dmeventd/raid_library.
  1842. # This configuration option has an automatic default value.
  1843. # raid_library = "libdevmapper-event-lvm2raid.so"
  1844.  
  1845. # Configuration option dmeventd/snapshot_library.
  1846. # The library dmeventd uses when monitoring a snapshot device.
  1847. # libdevmapper-event-lvm2snapshot.so monitors the filling of snapshots
  1848. # and emits a warning through syslog when the usage exceeds 80%. The
  1849. # warning is repeated when 85%, 90% and 95% of the snapshot is filled.
  1850. snapshot_library = "libdevmapper-event-lvm2snapshot.so"
  1851.  
  1852. # Configuration option dmeventd/thin_library.
  1853. # The library dmeventd uses when monitoring a thin device.
  1854. # libdevmapper-event-lvm2thin.so monitors the filling of a pool
  1855. # and emits a warning through syslog when the usage exceeds 80%. The
  1856. # warning is repeated when 85%, 90% and 95% of the pool is filled.
  1857. thin_library = "libdevmapper-event-lvm2thin.so"
  1858.  
  1859. # Configuration option dmeventd/executable.
  1860. # The full path to the dmeventd binary.
  1861. # This configuration option has an automatic default value.
  1862. # executable = "/usr/sbin/dmeventd"
  1863. }
  1864.  
  1865. # Configuration section tags.
  1866. # Host tag settings.
  1867. # This configuration section has an automatic default value.
  1868. # tags {
  1869.  
  1870. # Configuration option tags/hosttags.
  1871. # Create a host tag using the machine name.
  1872. # The machine name is nodename returned by uname(2).
  1873. # This configuration option has an automatic default value.
  1874. # hosttags = 0
  1875.  
  1876. # Configuration section tags/<tag>.
  1877. # Replace this subsection name with a custom tag name.
  1878. # Multiple subsections like this can be created. The '@' prefix for
  1879. # tags is optional. This subsection can contain host_list, which is a
  1880. # list of machine names. If the name of the local machine is found in
  1881. # host_list, then the name of this subsection is used as a tag and is
  1882. # applied to the local machine as a 'host tag'. If this subsection is
  1883. # empty (has no host_list), then the subsection name is always applied
  1884. # as a 'host tag'.
  1885. #
  1886. # Example
  1887. # The host tag foo is given to all hosts, and the host tag
  1888. # bar is given to the hosts named machine1 and machine2.
  1889. # tags { foo { } bar { host_list = [ "machine1", "machine2" ] } }
  1890. #
  1891. # This configuration section has variable name.
  1892. # This configuration section has an automatic default value.
  1893. # tag {
  1894.  
  1895. # Configuration option tags/<tag>/host_list.
  1896. # A list of machine names.
  1897. # These machine names are compared to the nodename returned
  1898. # by uname(2). If the local machine name matches an entry in
  1899. # this list, the name of the subsection is applied to the
  1900. # machine as a 'host tag'.
  1901. # This configuration option does not have a default value defined.
  1902. # }
  1903. # }
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