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  1. root@De-Vre-Prox13:~# arc_summary
  2.  
  3. ------------------------------------------------------------------------
  4. ZFS Subsystem Report Wed Oct 02 12:06:11 2019
  5. Linux 5.0.15-1-pve 0.8.1-pve1
  6. Machine: De-Vre-Prox13 (x86_64) 0.8.1-pve1
  7.  
  8. ARC status: HEALTHY
  9. Memory throttle count: 0
  10.  
  11. ARC size (current): 64.9 % 30.7 GiB
  12. Target size (adaptive): 65.2 % 30.8 GiB
  13. Min size (hard limit): 6.2 % 2.9 GiB
  14. Max size (high water): 16:1 47.2 GiB
  15. Most Frequently Used (MFU) cache size: 0.5 % 136.4 MiB
  16. Most Recently Used (MRU) cache size: 99.5 % 29.0 GiB
  17. Metadata cache size (hard limit): 75.0 % 35.4 GiB
  18. Metadata cache size (current): 5.1 % 1.8 GiB
  19. Dnode cache size (hard limit): 10.0 % 3.5 GiB
  20. Dnode cache size (current): 0.2 % 8.5 MiB
  21.  
  22. ARC hash breakdown:
  23. Elements max: 5.0M
  24. Elements current: 92.8 % 4.6M
  25. Collisions: 2.9M
  26. Chain max: 6
  27. Chains: 535.8k
  28.  
  29. ARC misc:
  30. Deleted: 4.2M
  31. Mutex misses: 245
  32. Eviction skips: 1.3k
  33.  
  34. ARC total accesses (hits + misses): 49.7M
  35. Cache hit ratio: 89.2 % 44.4M
  36. Cache miss ratio: 10.8 % 5.4M
  37. Actual hit ratio (MFU + MRU hits): 88.6 % 44.0M
  38. Data demand efficiency: 75.2 % 17.6M
  39. Data prefetch efficiency: 24.5 % 1.3M
  40.  
  41. Cache hits by cache type:
  42. Most frequently used (MFU): 76.5 % 33.9M
  43. Most recently used (MRU): 22.7 % 10.1M
  44. Most frequently used (MFU) ghost: 0.1 % 34.5k
  45. Most recently used (MRU) ghost: 0.1 % 25.7k
  46. Anonymously used: 0.6 % 266.6k
  47.  
  48. Cache hits by data type:
  49. Demand data: 29.8 % 13.2M
  50. Demand prefetch data: 0.7 % 319.1k
  51. Demand metadata: 69.4 % 30.8M
  52. Demand prefetch metadata: < 0.1 % 10.6k
  53.  
  54. Cache misses by data type:
  55. Demand data: 81.4 % 4.4M
  56. Demand prefetch data: 18.3 % 981.2k
  57. Demand metadata: 0.3 % 13.5k
  58. Demand prefetch metadata: 0.1 % 3.9k
  59.  
  60. DMU prefetch efficiency: 30.4M
  61. Hit ratio: 1.2 % 351.4k
  62. Miss ratio: 98.8 % 30.1M
  63.  
  64. L2ARC not detected, skipping section
  65.  
  66. Solaris Porting Layer (SPL):
  67. spl_hostid 0
  68. spl_hostid_path /etc/hostid
  69. spl_kmem_alloc_max 1048576
  70. spl_kmem_alloc_warn 65536
  71. spl_kmem_cache_expire 2
  72. spl_kmem_cache_kmem_limit 2048
  73. spl_kmem_cache_kmem_threads 4
  74. spl_kmem_cache_magazine_size 0
  75. spl_kmem_cache_max_size 32
  76. spl_kmem_cache_obj_per_slab 8
  77. spl_kmem_cache_obj_per_slab_min 1
  78. spl_kmem_cache_reclaim 0
  79. spl_kmem_cache_slab_limit 16384
  80. spl_max_show_tasks 512
  81. spl_panic_halt 0
  82. spl_taskq_kick 0
  83. spl_taskq_thread_bind 0
  84. spl_taskq_thread_dynamic 1
  85. spl_taskq_thread_priority 1
  86. spl_taskq_thread_sequential 4
  87.  
  88. Tunables:
  89. dbuf_cache_hiwater_pct 10
  90. dbuf_cache_lowater_pct 10
  91. dbuf_cache_max_bytes 1583728512
  92. dbuf_cache_shift 5
  93. dbuf_metadata_cache_max_bytes 791864256
  94. dbuf_metadata_cache_shift 6
  95. dmu_object_alloc_chunk_shift 7
  96. ignore_hole_birth 1
  97. l2arc_feed_again 1
  98. l2arc_feed_min_ms 200
  99. l2arc_feed_secs 1
  100. l2arc_headroom 2
  101. l2arc_headroom_boost 200
  102. l2arc_noprefetch 1
  103. l2arc_norw 0
  104. l2arc_write_boost 8388608
  105. l2arc_write_max 8388608
  106. metaslab_aliquot 524288
  107. metaslab_bias_enabled 1
  108. metaslab_debug_load 0
  109. metaslab_debug_unload 0
  110. metaslab_force_ganging 16777217
  111. metaslab_fragmentation_factor_enabled 1
  112. metaslab_lba_weighting_enabled 1
  113. metaslab_preload_enabled 1
  114. send_holes_without_birth_time 1
  115. spa_asize_inflation 24
  116. spa_config_path /etc/zfs/zpool.cache
  117. spa_load_print_vdev_tree 0
  118. spa_load_verify_data 1
  119. spa_load_verify_maxinflight 10000
  120. spa_load_verify_metadata 1
  121. spa_slop_shift 5
  122. vdev_removal_max_span 32768
  123. vdev_validate_skip 0
  124. zfetch_array_rd_sz 1048576
  125. zfetch_max_distance 8388608
  126. zfetch_max_streams 8
  127. zfetch_min_sec_reap 2
  128. zfs_abd_scatter_enabled 1
  129. zfs_abd_scatter_max_order 10
  130. zfs_abd_scatter_min_size 1536
  131. zfs_admin_snapshot 0
  132. zfs_arc_average_blocksize 8192
  133. zfs_arc_dnode_limit 0
  134. zfs_arc_dnode_limit_percent 10
  135. zfs_arc_dnode_reduce_percent 10
  136. zfs_arc_grow_retry 0
  137. zfs_arc_lotsfree_percent 10
  138. zfs_arc_max 0
  139. zfs_arc_meta_adjust_restarts 4096
  140. zfs_arc_meta_limit 0
  141. zfs_arc_meta_limit_percent 75
  142. zfs_arc_meta_min 0
  143. zfs_arc_meta_prune 10000
  144. zfs_arc_meta_strategy 1
  145. zfs_arc_min 0
  146. zfs_arc_min_prefetch_ms 0
  147. zfs_arc_min_prescient_prefetch_ms 0
  148. zfs_arc_p_dampener_disable 1
  149. zfs_arc_p_min_shift 0
  150. zfs_arc_pc_percent 0
  151. zfs_arc_shrink_shift 0
  152. zfs_arc_sys_free 0
  153. zfs_async_block_max_blocks 100000
  154. zfs_autoimport_disable 1
  155. zfs_checksum_events_per_second 20
  156. zfs_commit_timeout_pct 5
  157. zfs_compressed_arc_enabled 1
  158. zfs_condense_indirect_commit_entry_delay_ms 0
  159. zfs_condense_indirect_vdevs_enable 1
  160. zfs_condense_max_obsolete_bytes 1073741824
  161. zfs_condense_min_mapping_bytes 131072
  162. zfs_dbgmsg_enable 1
  163. zfs_dbgmsg_maxsize 4194304
  164. zfs_dbuf_state_index 0
  165. zfs_ddt_data_is_special 1
  166. zfs_deadman_checktime_ms 60000
  167. zfs_deadman_enabled 1
  168. zfs_deadman_failmode wait
  169. zfs_deadman_synctime_ms 600000
  170. zfs_deadman_ziotime_ms 300000
  171. zfs_dedup_prefetch 0
  172. zfs_delay_min_dirty_percent 60
  173. zfs_delay_scale 500000
  174. zfs_delete_blocks 20480
  175. zfs_dirty_data_max 4294967296
  176. zfs_dirty_data_max_max 4294967296
  177. zfs_dirty_data_max_max_percent 25
  178. zfs_dirty_data_max_percent 10
  179. zfs_dirty_data_sync_percent 20
  180. zfs_disable_ivset_guid_check 0
  181. zfs_dmu_offset_next_sync 0
  182. zfs_expire_snapshot 300
  183. zfs_flags 0
  184. zfs_free_bpobj_enabled 1
  185. zfs_free_leak_on_eio 0
  186. zfs_free_min_time_ms 1000
  187. zfs_immediate_write_sz 32768
  188. zfs_initialize_value 16045690984833335022
  189. zfs_key_max_salt_uses 400000000
  190. zfs_lua_max_instrlimit 100000000
  191. zfs_lua_max_memlimit 104857600
  192. zfs_max_missing_tvds 0
  193. zfs_max_recordsize 1048576
  194. zfs_metaslab_fragmentation_threshold 70
  195. zfs_metaslab_segment_weight_enabled 1
  196. zfs_metaslab_switch_threshold 2
  197. zfs_mg_fragmentation_threshold 85
  198. zfs_mg_noalloc_threshold 0
  199. zfs_multihost_fail_intervals 10
  200. zfs_multihost_history 0
  201. zfs_multihost_import_intervals 20
  202. zfs_multihost_interval 1000
  203. zfs_multilist_num_sublists 0
  204. zfs_no_scrub_io 0
  205. zfs_no_scrub_prefetch 0
  206. zfs_nocacheflush 0
  207. zfs_nopwrite_enabled 1
  208. zfs_object_mutex_size 64
  209. zfs_obsolete_min_time_ms 500
  210. zfs_override_estimate_recordsize 0
  211. zfs_pd_bytes_max 52428800
  212. zfs_per_txg_dirty_frees_percent 5
  213. zfs_prefetch_disable 0
  214. zfs_read_chunk_size 1048576
  215. zfs_read_history 0
  216. zfs_read_history_hits 0
  217. zfs_reconstruct_indirect_combinations_max 4096
  218. zfs_recover 0
  219. zfs_recv_queue_length 16777216
  220. zfs_removal_ignore_errors 0
  221. zfs_removal_suspend_progress 0
  222. zfs_remove_max_segment 16777216
  223. zfs_resilver_disable_defer 0
  224. zfs_resilver_min_time_ms 3000
  225. zfs_scan_checkpoint_intval 7200
  226. zfs_scan_fill_weight 3
  227. zfs_scan_ignore_errors 0
  228. zfs_scan_issue_strategy 0
  229. zfs_scan_legacy 0
  230. zfs_scan_max_ext_gap 2097152
  231. zfs_scan_mem_lim_fact 20
  232. zfs_scan_mem_lim_soft_fact 20
  233. zfs_scan_strict_mem_lim 0
  234. zfs_scan_suspend_progress 0
  235. zfs_scan_vdev_limit 4194304
  236. zfs_scrub_min_time_ms 1000
  237. zfs_send_corrupt_data 0
  238. zfs_send_queue_length 16777216
  239. zfs_send_unmodified_spill_blocks 1
  240. zfs_slow_io_events_per_second 20
  241. zfs_spa_discard_memory_limit 16777216
  242. zfs_special_class_metadata_reserve_pct 25
  243. zfs_sync_pass_deferred_free 2
  244. zfs_sync_pass_dont_compress 5
  245. zfs_sync_pass_rewrite 2
  246. zfs_sync_taskq_batch_pct 75
  247. zfs_trim_extent_bytes_max 134217728
  248. zfs_trim_extent_bytes_min 32768
  249. zfs_trim_metaslab_skip 0
  250. zfs_trim_queue_limit 10
  251. zfs_trim_txg_batch 32
  252. zfs_txg_history 100
  253. zfs_txg_timeout 5
  254. zfs_unlink_suspend_progress 0
  255. zfs_user_indirect_is_special 1
  256. zfs_vdev_aggregate_trim 0
  257. zfs_vdev_aggregation_limit 1048576
  258. zfs_vdev_aggregation_limit_non_rotating 131072
  259. zfs_vdev_async_read_max_active 3
  260. zfs_vdev_async_read_min_active 1
  261. zfs_vdev_async_write_active_max_dirty_percent 60
  262. zfs_vdev_async_write_active_min_dirty_percent 30
  263. zfs_vdev_async_write_max_active 10
  264. zfs_vdev_async_write_min_active 2
  265. zfs_vdev_cache_bshift 16
  266. zfs_vdev_cache_max 16384
  267. zfs_vdev_cache_size 0
  268. zfs_vdev_default_ms_count 200
  269. zfs_vdev_initializing_max_active 1
  270. zfs_vdev_initializing_min_active 1
  271. zfs_vdev_max_active 1000
  272. zfs_vdev_min_ms_count 16
  273. zfs_vdev_mirror_non_rotating_inc 0
  274. zfs_vdev_mirror_non_rotating_seek_inc 1
  275. zfs_vdev_mirror_rotating_inc 0
  276. zfs_vdev_mirror_rotating_seek_inc 5
  277. zfs_vdev_mirror_rotating_seek_offset 1048576
  278. zfs_vdev_ms_count_limit 131072
  279. zfs_vdev_queue_depth_pct 1000
  280. zfs_vdev_raidz_impl [fastest] original scalar
  281. zfs_vdev_read_gap_limit 32768
  282. zfs_vdev_removal_max_active 2
  283. zfs_vdev_removal_min_active 1
  284. zfs_vdev_scheduler noop
  285. zfs_vdev_scrub_max_active 2
  286. zfs_vdev_scrub_min_active 1
  287. zfs_vdev_sync_read_max_active 10
  288. zfs_vdev_sync_read_min_active 10
  289. zfs_vdev_sync_write_max_active 10
  290. zfs_vdev_sync_write_min_active 10
  291. zfs_vdev_trim_max_active 2
  292. zfs_vdev_trim_min_active 1
  293. zfs_vdev_write_gap_limit 4096
  294. zfs_zevent_cols 80
  295. zfs_zevent_console 0
  296. zfs_zevent_len_max 256
  297. zfs_zil_clean_taskq_maxalloc 1048576
  298. zfs_zil_clean_taskq_minalloc 1024
  299. zfs_zil_clean_taskq_nthr_pct 100
  300. zil_nocacheflush 0
  301. zil_replay_disable 0
  302. zil_slog_bulk 786432
  303. zio_deadman_log_all 0
  304. zio_dva_throttle_enabled 1
  305. zio_requeue_io_start_cut_in_line 1
  306. zio_slow_io_ms 30000
  307. zio_taskq_batch_pct 75
  308. zvol_inhibit_dev 0
  309. zvol_major 230
  310. zvol_max_discard_blocks 16384
  311. zvol_prefetch_bytes 131072
  312. zvol_request_sync 0
  313. zvol_threads 32
  314. zvol_volmode 1
  315.  
  316. VDEV cache disabled, skipping section
  317.  
  318. ZIL committed transactions: 13.9M
  319. Commit requests: 125.8k
  320. Flushes to stable storage: 125.8k
  321. Transactions to SLOG storage pool: 0 Bytes 0
  322. Transactions to non-SLOG storage pool: 56.9 GiB 587.5k
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