sysfs-fs-nilfs2 7.8 KB

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  1. What: /sys/fs/nilfs2/features/revision
  2. Date: April 2014
  3. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  4. Description:
  5. Show current revision of NILFS file system driver.
  6. This value informs about file system revision that
  7. driver is ready to support.
  8. What: /sys/fs/nilfs2/features/README
  9. Date: April 2014
  10. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  11. Description:
  12. Describe attributes of /sys/fs/nilfs2/features group.
  13. What: /sys/fs/nilfs2/<device>/revision
  14. Date: April 2014
  15. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  16. Description:
  17. Show NILFS file system revision on volume.
  18. This value informs about metadata structures'
  19. revision on mounted volume.
  20. What: /sys/fs/nilfs2/<device>/blocksize
  21. Date: April 2014
  22. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  23. Description:
  24. Show volume's block size in bytes.
  25. What: /sys/fs/nilfs2/<device>/device_size
  26. Date: April 2014
  27. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  28. Description:
  29. Show volume size in bytes.
  30. What: /sys/fs/nilfs2/<device>/free_blocks
  31. Date: April 2014
  32. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  33. Description:
  34. Show count of free blocks on volume.
  35. What: /sys/fs/nilfs2/<device>/uuid
  36. Date: April 2014
  37. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  38. Description:
  39. Show volume's UUID (Universally Unique Identifier).
  40. What: /sys/fs/nilfs2/<device>/volume_name
  41. Date: April 2014
  42. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  43. Description:
  44. Show volume's label.
  45. What: /sys/fs/nilfs2/<device>/README
  46. Date: April 2014
  47. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  48. Description:
  49. Describe attributes of /sys/fs/nilfs2/<device> group.
  50. What: /sys/fs/nilfs2/<device>/superblock/sb_write_time
  51. Date: April 2014
  52. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  53. Description:
  54. Show last write time of super block in human-readable
  55. format.
  56. What: /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
  57. Date: April 2014
  58. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  59. Description:
  60. Show last write time of super block in seconds.
  61. What: /sys/fs/nilfs2/<device>/superblock/sb_write_count
  62. Date: April 2014
  63. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  64. Description:
  65. Show current write count of super block.
  66. What: /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
  67. Date: April 2014
  68. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  69. Description:
  70. Show/Set interval of periodical update of superblock
  71. (in seconds).
  72. What: /sys/fs/nilfs2/<device>/superblock/README
  73. Date: April 2014
  74. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  75. Description:
  76. Describe attributes of /sys/fs/nilfs2/<device>/superblock
  77. group.
  78. What: /sys/fs/nilfs2/<device>/segctor/last_pseg_block
  79. Date: April 2014
  80. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  81. Description:
  82. Show start block number of the latest segment.
  83. What: /sys/fs/nilfs2/<device>/segctor/last_seg_sequence
  84. Date: April 2014
  85. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  86. Description:
  87. Show sequence value of the latest segment.
  88. What: /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
  89. Date: April 2014
  90. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  91. Description:
  92. Show checkpoint number of the latest segment.
  93. What: /sys/fs/nilfs2/<device>/segctor/current_seg_sequence
  94. Date: April 2014
  95. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  96. Description:
  97. Show segment sequence counter.
  98. What: /sys/fs/nilfs2/<device>/segctor/current_last_full_seg
  99. Date: April 2014
  100. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  101. Description:
  102. Show index number of the latest full segment.
  103. What: /sys/fs/nilfs2/<device>/segctor/next_full_seg
  104. Date: April 2014
  105. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  106. Description:
  107. Show index number of the full segment index
  108. to be used next.
  109. What: /sys/fs/nilfs2/<device>/segctor/next_pseg_offset
  110. Date: April 2014
  111. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  112. Description:
  113. Show offset of next partial segment in the current
  114. full segment.
  115. What: /sys/fs/nilfs2/<device>/segctor/next_checkpoint
  116. Date: April 2014
  117. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  118. Description:
  119. Show next checkpoint number.
  120. What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time
  121. Date: April 2014
  122. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  123. Description:
  124. Show write time of the last segment in
  125. human-readable format.
  126. What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
  127. Date: April 2014
  128. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  129. Description:
  130. Show write time of the last segment in seconds.
  131. What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
  132. Date: April 2014
  133. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  134. Description:
  135. Show write time of the last segment not for cleaner
  136. operation in human-readable format.
  137. What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
  138. Date: April 2014
  139. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  140. Description:
  141. Show write time of the last segment not for cleaner
  142. operation in seconds.
  143. What: /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
  144. Date: April 2014
  145. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  146. Description:
  147. Show number of dirty data blocks.
  148. What: /sys/fs/nilfs2/<device>/segctor/README
  149. Date: April 2014
  150. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  151. Description:
  152. Describe attributes of /sys/fs/nilfs2/<device>/segctor
  153. group.
  154. What: /sys/fs/nilfs2/<device>/segments/segments_number
  155. Date: April 2014
  156. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  157. Description:
  158. Show number of segments on a volume.
  159. What: /sys/fs/nilfs2/<device>/segments/blocks_per_segment
  160. Date: April 2014
  161. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  162. Description:
  163. Show number of blocks in segment.
  164. What: /sys/fs/nilfs2/<device>/segments/clean_segments
  165. Date: April 2014
  166. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  167. Description:
  168. Show count of clean segments.
  169. What: /sys/fs/nilfs2/<device>/segments/dirty_segments
  170. Date: April 2014
  171. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  172. Description:
  173. Show count of dirty segments.
  174. What: /sys/fs/nilfs2/<device>/segments/README
  175. Date: April 2014
  176. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  177. Description:
  178. Describe attributes of /sys/fs/nilfs2/<device>/segments
  179. group.
  180. What: /sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
  181. Date: April 2014
  182. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  183. Description:
  184. Show number of checkpoints on volume.
  185. What: /sys/fs/nilfs2/<device>/checkpoints/snapshots_number
  186. Date: April 2014
  187. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  188. Description:
  189. Show number of snapshots on volume.
  190. What: /sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
  191. Date: April 2014
  192. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  193. Description:
  194. Show checkpoint number of the latest segment.
  195. What: /sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
  196. Date: April 2014
  197. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  198. Description:
  199. Show next checkpoint number.
  200. What: /sys/fs/nilfs2/<device>/checkpoints/README
  201. Date: April 2014
  202. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  203. Description:
  204. Describe attributes of /sys/fs/nilfs2/<device>/checkpoints
  205. group.
  206. What: /sys/fs/nilfs2/<device>/mounted_snapshots/README
  207. Date: April 2014
  208. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  209. Description:
  210. Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
  211. group.
  212. What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
  213. Date: April 2014
  214. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  215. Description:
  216. Show number of inodes for snapshot.
  217. What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
  218. Date: April 2014
  219. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  220. Description:
  221. Show number of blocks for snapshot.
  222. What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
  223. Date: April 2014
  224. Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
  225. Description:
  226. Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
  227. group.