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grahamperrin

Core Storage LV, ZFS, ashift=9 at creation, ashift 12 in zdb

Aug 3rd, 2014
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  1. sh-3.2$ zpool get ashift gjp22
  2. NAME PROPERTY VALUE SOURCE
  3. gjp22 ashift 9 local
  4. sh-3.2$ sudo zdb -C gjp22
  5.  
  6. MOS Configuration:
  7. version: 28
  8. name: 'gjp22'
  9. state: 0
  10. txg: 204
  11. pool_guid: 5341866598442965231
  12. hostname: 'gpes3e-gjp4@1B4C77AE-B80A-59F9-B5CB-7A86B7437D40'
  13. vdev_children: 1
  14. vdev_tree:
  15. type: 'root'
  16. id: 0
  17. guid: 5341866598442965231
  18. create_txg: 4
  19. children[0]:
  20. type: 'disk'
  21. id: 0
  22. guid: 18285277248612432838
  23. path: '/dev/dsk/GPTE_67095812-B5B2-4ECE-A0D5-E1721F71C279'
  24. whole_disk: 0
  25. metaslab_array: 31
  26. metaslab_shift: 32
  27. ashift: 12
  28. asize: 615640465408
  29. is_log: 0
  30. DTL: 36
  31. create_txg: 4
  32. sh-3.2$ diskutil list
  33. /dev/disk0
  34. #: TYPE NAME SIZE IDENTIFIER
  35. 0: GUID_partition_scheme *750.2 GB disk0
  36. 1: EFI EFI 209.7 MB disk0s1
  37. 2: Apple_CoreStorage 616.0 GB disk0s2
  38. 3: Apple_Boot Boot OS X 134.2 MB disk0s3
  39. 4: Apple_CoreStorage 133.2 GB disk0s4
  40. 5: Apple_Boot Recovery HD 650.0 MB disk0s5
  41. /dev/disk1
  42. #: TYPE NAME SIZE IDENTIFIER
  43. 0: GUID_partition_scheme *615.6 GB disk1
  44. 1: ZFS 615.6 GB disk1s1
  45. /dev/disk2
  46. #: TYPE NAME SIZE IDENTIFIER
  47. 0: Apple_HFS OS *132.8 GB disk2
  48. /dev/disk3
  49. #: TYPE NAME SIZE IDENTIFIER
  50. 0: zfs_pool_proxy gjp22 *614.2 GB disk3
  51. sh-3.2$ date
  52. Sun 3 Aug 2014 20:00:59 BST
  53. sh-3.2$ sudo gpt -r show /dev/disk1
  54. start size index contents
  55. 0 1 PMBR
  56. 1 1 Pri GPT header
  57. 2 32 Pri GPT table
  58. 34 2014
  59. 2048 1202432511 1 GPT part - 6A898CC3-1DD2-11B2-99A6-080020736631
  60. 1202434559 32 Sec GPT table
  61. 1202434591 1 Sec GPT header
  62. sh-3.2$ sudo gdisk /dev/disk1
  63. GPT fdisk (gdisk) version 0.8.6
  64.  
  65. Partition table scan:
  66. MBR: protective
  67. BSD: not present
  68. APM: not present
  69. GPT: present
  70.  
  71. Found valid GPT with protective MBR; using GPT.
  72.  
  73. Command (? for help): p
  74. Disk /dev/disk1: 1202434592 sectors, 573.4 GiB
  75. Logical sector size: 512 bytes
  76. Disk identifier (GUID): B4F15F96-D630-4C75-8A18-E6BD496463E2
  77. Partition table holds up to 128 entries
  78. First usable sector is 34, last usable sector is 1202434558
  79. Partitions will be aligned on 2048-sector boundaries
  80. Total free space is 2014 sectors (1007.0 KiB)
  81.  
  82. Number Start (sector) End (sector) Size Code Name
  83. 1 2048 1202434558 573.4 GiB BF01 Solaris /usr & Mac ZFS
  84.  
  85. Command (? for help): q
  86. sh-3.2$ sudo zdb -l /dev/disk1s1
  87. --------------------------------------------
  88. LABEL 0
  89. --------------------------------------------
  90. version: 28
  91. name: 'gjp22'
  92. state: 0
  93. txg: 204
  94. pool_guid: 5341866598442965231
  95. hostname: 'gpes3e-gjp4@1B4C77AE-B80A-59F9-B5CB-7A86B7437D40'
  96. top_guid: 18285277248612432838
  97. guid: 18285277248612432838
  98. vdev_children: 1
  99. vdev_tree:
  100. type: 'disk'
  101. id: 0
  102. guid: 18285277248612432838
  103. path: '/dev/dsk/GPTE_67095812-B5B2-4ECE-A0D5-E1721F71C279'
  104. whole_disk: 0
  105. metaslab_array: 31
  106. metaslab_shift: 32
  107. ashift: 12
  108. asize: 615640465408
  109. is_log: 0
  110. DTL: 36
  111. create_txg: 4
  112. --------------------------------------------
  113. LABEL 1
  114. --------------------------------------------
  115. version: 28
  116. name: 'gjp22'
  117. state: 0
  118. txg: 204
  119. pool_guid: 5341866598442965231
  120. hostname: 'gpes3e-gjp4@1B4C77AE-B80A-59F9-B5CB-7A86B7437D40'
  121. top_guid: 18285277248612432838
  122. guid: 18285277248612432838
  123. vdev_children: 1
  124. vdev_tree:
  125. type: 'disk'
  126. id: 0
  127. guid: 18285277248612432838
  128. path: '/dev/dsk/GPTE_67095812-B5B2-4ECE-A0D5-E1721F71C279'
  129. whole_disk: 0
  130. metaslab_array: 31
  131. metaslab_shift: 32
  132. ashift: 12
  133. asize: 615640465408
  134. is_log: 0
  135. DTL: 36
  136. create_txg: 4
  137. --------------------------------------------
  138. LABEL 2
  139. --------------------------------------------
  140. version: 28
  141. name: 'gjp22'
  142. state: 0
  143. txg: 204
  144. pool_guid: 5341866598442965231
  145. hostname: 'gpes3e-gjp4@1B4C77AE-B80A-59F9-B5CB-7A86B7437D40'
  146. top_guid: 18285277248612432838
  147. guid: 18285277248612432838
  148. vdev_children: 1
  149. vdev_tree:
  150. type: 'disk'
  151. id: 0
  152. guid: 18285277248612432838
  153. path: '/dev/dsk/GPTE_67095812-B5B2-4ECE-A0D5-E1721F71C279'
  154. whole_disk: 0
  155. metaslab_array: 31
  156. metaslab_shift: 32
  157. ashift: 12
  158. asize: 615640465408
  159. is_log: 0
  160. DTL: 36
  161. create_txg: 4
  162. --------------------------------------------
  163. LABEL 3
  164. --------------------------------------------
  165. version: 28
  166. name: 'gjp22'
  167. state: 0
  168. txg: 204
  169. pool_guid: 5341866598442965231
  170. hostname: 'gpes3e-gjp4@1B4C77AE-B80A-59F9-B5CB-7A86B7437D40'
  171. top_guid: 18285277248612432838
  172. guid: 18285277248612432838
  173. vdev_children: 1
  174. vdev_tree:
  175. type: 'disk'
  176. id: 0
  177. guid: 18285277248612432838
  178. path: '/dev/dsk/GPTE_67095812-B5B2-4ECE-A0D5-E1721F71C279'
  179. whole_disk: 0
  180. metaslab_array: 31
  181. metaslab_shift: 32
  182. ashift: 12
  183. asize: 615640465408
  184. is_log: 0
  185. DTL: 36
  186. create_txg: 4
  187. sh-3.2$
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