0001
0002 What: /sys/fs/nilfs2/features/revision
0003 Date: April 2014
0004 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0005 Description:
0006 Show current revision of NILFS file system driver.
0007 This value informs about file system revision that
0008 driver is ready to support.
0009
0010 What: /sys/fs/nilfs2/features/README
0011 Date: April 2014
0012 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0013 Description:
0014 Describe attributes of /sys/fs/nilfs2/features group.
0015
0016 What: /sys/fs/nilfs2/<device>/revision
0017 Date: April 2014
0018 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0019 Description:
0020 Show NILFS file system revision on volume.
0021 This value informs about metadata structures'
0022 revision on mounted volume.
0023
0024 What: /sys/fs/nilfs2/<device>/blocksize
0025 Date: April 2014
0026 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0027 Description:
0028 Show volume's block size in bytes.
0029
0030 What: /sys/fs/nilfs2/<device>/device_size
0031 Date: April 2014
0032 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0033 Description:
0034 Show volume size in bytes.
0035
0036 What: /sys/fs/nilfs2/<device>/free_blocks
0037 Date: April 2014
0038 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0039 Description:
0040 Show count of free blocks on volume.
0041
0042 What: /sys/fs/nilfs2/<device>/uuid
0043 Date: April 2014
0044 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0045 Description:
0046 Show volume's UUID (Universally Unique Identifier).
0047
0048 What: /sys/fs/nilfs2/<device>/volume_name
0049 Date: April 2014
0050 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0051 Description:
0052 Show volume's label.
0053
0054 What: /sys/fs/nilfs2/<device>/README
0055 Date: April 2014
0056 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0057 Description:
0058 Describe attributes of /sys/fs/nilfs2/<device> group.
0059
0060 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time
0061 Date: April 2014
0062 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0063 Description:
0064 Show last write time of super block in human-readable
0065 format.
0066
0067 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
0068 Date: April 2014
0069 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0070 Description:
0071 Show last write time of super block in seconds.
0072
0073 What: /sys/fs/nilfs2/<device>/superblock/sb_write_count
0074 Date: April 2014
0075 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0076 Description:
0077 Show current write count of super block.
0078
0079 What: /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
0080 Date: April 2014
0081 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0082 Description:
0083 Show/Set interval of periodical update of superblock
0084 (in seconds).
0085
0086 What: /sys/fs/nilfs2/<device>/superblock/README
0087 Date: April 2014
0088 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0089 Description:
0090 Describe attributes of /sys/fs/nilfs2/<device>/superblock
0091 group.
0092
0093 What: /sys/fs/nilfs2/<device>/segctor/last_pseg_block
0094 Date: April 2014
0095 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0096 Description:
0097 Show start block number of the latest segment.
0098
0099 What: /sys/fs/nilfs2/<device>/segctor/last_seg_sequence
0100 Date: April 2014
0101 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0102 Description:
0103 Show sequence value of the latest segment.
0104
0105 What: /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
0106 Date: April 2014
0107 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0108 Description:
0109 Show checkpoint number of the latest segment.
0110
0111 What: /sys/fs/nilfs2/<device>/segctor/current_seg_sequence
0112 Date: April 2014
0113 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0114 Description:
0115 Show segment sequence counter.
0116
0117 What: /sys/fs/nilfs2/<device>/segctor/current_last_full_seg
0118 Date: April 2014
0119 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0120 Description:
0121 Show index number of the latest full segment.
0122
0123 What: /sys/fs/nilfs2/<device>/segctor/next_full_seg
0124 Date: April 2014
0125 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0126 Description:
0127 Show index number of the full segment index
0128 to be used next.
0129
0130 What: /sys/fs/nilfs2/<device>/segctor/next_pseg_offset
0131 Date: April 2014
0132 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0133 Description:
0134 Show offset of next partial segment in the current
0135 full segment.
0136
0137 What: /sys/fs/nilfs2/<device>/segctor/next_checkpoint
0138 Date: April 2014
0139 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0140 Description:
0141 Show next checkpoint number.
0142
0143 What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time
0144 Date: April 2014
0145 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0146 Description:
0147 Show write time of the last segment in
0148 human-readable format.
0149
0150 What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
0151 Date: April 2014
0152 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0153 Description:
0154 Show write time of the last segment in seconds.
0155
0156 What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
0157 Date: April 2014
0158 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0159 Description:
0160 Show write time of the last segment not for cleaner
0161 operation in human-readable format.
0162
0163 What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
0164 Date: April 2014
0165 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0166 Description:
0167 Show write time of the last segment not for cleaner
0168 operation in seconds.
0169
0170 What: /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
0171 Date: April 2014
0172 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0173 Description:
0174 Show number of dirty data blocks.
0175
0176 What: /sys/fs/nilfs2/<device>/segctor/README
0177 Date: April 2014
0178 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0179 Description:
0180 Describe attributes of /sys/fs/nilfs2/<device>/segctor
0181 group.
0182
0183 What: /sys/fs/nilfs2/<device>/segments/segments_number
0184 Date: April 2014
0185 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0186 Description:
0187 Show number of segments on a volume.
0188
0189 What: /sys/fs/nilfs2/<device>/segments/blocks_per_segment
0190 Date: April 2014
0191 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0192 Description:
0193 Show number of blocks in segment.
0194
0195 What: /sys/fs/nilfs2/<device>/segments/clean_segments
0196 Date: April 2014
0197 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0198 Description:
0199 Show count of clean segments.
0200
0201 What: /sys/fs/nilfs2/<device>/segments/dirty_segments
0202 Date: April 2014
0203 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0204 Description:
0205 Show count of dirty segments.
0206
0207 What: /sys/fs/nilfs2/<device>/segments/README
0208 Date: April 2014
0209 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0210 Description:
0211 Describe attributes of /sys/fs/nilfs2/<device>/segments
0212 group.
0213
0214 What: /sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
0215 Date: April 2014
0216 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0217 Description:
0218 Show number of checkpoints on volume.
0219
0220 What: /sys/fs/nilfs2/<device>/checkpoints/snapshots_number
0221 Date: April 2014
0222 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0223 Description:
0224 Show number of snapshots on volume.
0225
0226 What: /sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
0227 Date: April 2014
0228 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0229 Description:
0230 Show checkpoint number of the latest segment.
0231
0232 What: /sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
0233 Date: April 2014
0234 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0235 Description:
0236 Show next checkpoint number.
0237
0238 What: /sys/fs/nilfs2/<device>/checkpoints/README
0239 Date: April 2014
0240 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0241 Description:
0242 Describe attributes of /sys/fs/nilfs2/<device>/checkpoints
0243 group.
0244
0245 What: /sys/fs/nilfs2/<device>/mounted_snapshots/README
0246 Date: April 2014
0247 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0248 Description:
0249 Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
0250 group.
0251
0252 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
0253 Date: April 2014
0254 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0255 Description:
0256 Show number of inodes for snapshot.
0257
0258 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
0259 Date: April 2014
0260 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0261 Description:
0262 Show number of blocks for snapshot.
0263
0264 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
0265 Date: April 2014
0266 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
0267 Description:
0268 Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
0269 group.
