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Linux 6.18.37 · ABI / testing

NILFS2 filesystem sysfs ABI

NILFS2 driver와 volume revision, superblock 갱신, segment constructor, segment·checkpoint·mounted snapshot 통계를 제공하는 42개 sysfs ABI를 설명합니다.

Source pathDocumentation/ABI/testing/sysfs-fs-nilfs2
Source versionLinux v6.18.37
TranslationDUJINLABS 전문 번역 + 해설

요약·해설과 원문, 전문 번역을 서로 분리했습니다. API 이름, symbol, source path는 원문 표기를 사용합니다.

1. 요약·해설

원문의 핵심 논리와 kernel programming 관점의 보충 설명입니다. 아래의 전문 번역과는 별도로 작성했습니다.

Driver and volume identity

sysfs-fs-nilfs2:1-59

Driver 지원 revision과 mount된 volume의 metadata revision, block geometry, 용량, free blocks, UUID와 label을 제공합니다.

Superblock updates

sysfs-fs-nilfs2:60-92

Superblock의 마지막 write 시각, 누적 write count와 주기적 update interval을 조회하거나 설정합니다.

Segment constructor state

sysfs-fs-nilfs2:93-182

최근 segment의 block·sequence·checkpoint와 다음 full/partial segment 위치, write times와 dirty data blocks를 추적합니다.

Segments and checkpoints

sysfs-fs-nilfs2:183-244

Volume의 segment geometry, clean/dirty 분포, checkpoint·snapshot 수와 최근·다음 checkpoint 번호를 제공합니다.

Mounted snapshots

sysfs-fs-nilfs2:245-269

Mounted snapshot group과 각 snapshot ID의 inode·block 사용량을 설명합니다.

2. 영어 원문 전체

번역 기준이 된 Linux v6.18.37 원문입니다. 줄 번호는 이 버전의 파일 좌표입니다.

원문 전체 펼치기
1
2 What: /sys/fs/nilfs2/features/revision
3 Date: April 2014
4 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
5 Description:
6 Show current revision of NILFS file system driver.
7 This value informs about file system revision that
8 driver is ready to support.
9
10 What: /sys/fs/nilfs2/features/README
11 Date: April 2014
12 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
13 Description:
14 Describe attributes of /sys/fs/nilfs2/features group.
15
16 What: /sys/fs/nilfs2/<device>/revision
17 Date: April 2014
18 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
19 Description:
20 Show NILFS file system revision on volume.
21 This value informs about metadata structures'
22 revision on mounted volume.
23
24 What: /sys/fs/nilfs2/<device>/blocksize
25 Date: April 2014
26 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
27 Description:
28 Show volume's block size in bytes.
29
30 What: /sys/fs/nilfs2/<device>/device_size
31 Date: April 2014
32 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
33 Description:
34 Show volume size in bytes.
35
36 What: /sys/fs/nilfs2/<device>/free_blocks
37 Date: April 2014
38 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
39 Description:
40 Show count of free blocks on volume.
41
42 What: /sys/fs/nilfs2/<device>/uuid
43 Date: April 2014
44 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
45 Description:
46 Show volume's UUID (Universally Unique Identifier).
47
48 What: /sys/fs/nilfs2/<device>/volume_name
49 Date: April 2014
50 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
51 Description:
52 Show volume's label.
53
54 What: /sys/fs/nilfs2/<device>/README
55 Date: April 2014
56 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
57 Description:
58 Describe attributes of /sys/fs/nilfs2/<device> group.
59
60 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time
61 Date: April 2014
62 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
63 Description:
64 Show last write time of super block in human-readable
65 format.
66
67 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
68 Date: April 2014
69 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
70 Description:
71 Show last write time of super block in seconds.
72
73 What: /sys/fs/nilfs2/<device>/superblock/sb_write_count
74 Date: April 2014
75 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
76 Description:
77 Show current write count of super block.
78
79 What: /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
80 Date: April 2014
81 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
82 Description:
83 Show/Set interval of periodical update of superblock
84 (in seconds).
85
86 What: /sys/fs/nilfs2/<device>/superblock/README
87 Date: April 2014
88 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
89 Description:
90 Describe attributes of /sys/fs/nilfs2/<device>/superblock
91 group.
92
93 What: /sys/fs/nilfs2/<device>/segctor/last_pseg_block
94 Date: April 2014
95 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
96 Description:
97 Show start block number of the latest segment.
98
99 What: /sys/fs/nilfs2/<device>/segctor/last_seg_sequence
100 Date: April 2014
101 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
102 Description:
103 Show sequence value of the latest segment.
104
105 What: /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
106 Date: April 2014
107 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
108 Description:
109 Show checkpoint number of the latest segment.
110
111 What: /sys/fs/nilfs2/<device>/segctor/current_seg_sequence
112 Date: April 2014
113 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
114 Description:
115 Show segment sequence counter.
116
117 What: /sys/fs/nilfs2/<device>/segctor/current_last_full_seg
118 Date: April 2014
119 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
120 Description:
121 Show index number of the latest full segment.
122
123 What: /sys/fs/nilfs2/<device>/segctor/next_full_seg
124 Date: April 2014
125 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
126 Description:
127 Show index number of the full segment index
128 to be used next.
129
130 What: /sys/fs/nilfs2/<device>/segctor/next_pseg_offset
131 Date: April 2014
132 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
133 Description:
134 Show offset of next partial segment in the current
135 full segment.
136
137 What: /sys/fs/nilfs2/<device>/segctor/next_checkpoint
138 Date: April 2014
139 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
140 Description:
141 Show next checkpoint number.
142
143 What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time
144 Date: April 2014
145 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
146 Description:
147 Show write time of the last segment in
148 human-readable format.
149
150 What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
151 Date: April 2014
152 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
153 Description:
154 Show write time of the last segment in seconds.
155
156 What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
157 Date: April 2014
158 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
159 Description:
160 Show write time of the last segment not for cleaner
161 operation in human-readable format.
162
163 What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
164 Date: April 2014
165 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
166 Description:
167 Show write time of the last segment not for cleaner
168 operation in seconds.
169
170 What: /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
171 Date: April 2014
172 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
173 Description:
174 Show number of dirty data blocks.
175
176 What: /sys/fs/nilfs2/<device>/segctor/README
177 Date: April 2014
178 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
179 Description:
180 Describe attributes of /sys/fs/nilfs2/<device>/segctor
181 group.
182
183 What: /sys/fs/nilfs2/<device>/segments/segments_number
184 Date: April 2014
185 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
186 Description:
187 Show number of segments on a volume.
188
189 What: /sys/fs/nilfs2/<device>/segments/blocks_per_segment
190 Date: April 2014
191 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
192 Description:
193 Show number of blocks in segment.
194
195 What: /sys/fs/nilfs2/<device>/segments/clean_segments
196 Date: April 2014
197 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
198 Description:
199 Show count of clean segments.
200
201 What: /sys/fs/nilfs2/<device>/segments/dirty_segments
202 Date: April 2014
203 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
204 Description:
205 Show count of dirty segments.
206
207 What: /sys/fs/nilfs2/<device>/segments/README
208 Date: April 2014
209 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
210 Description:
211 Describe attributes of /sys/fs/nilfs2/<device>/segments
212 group.
213
214 What: /sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
215 Date: April 2014
216 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
217 Description:
218 Show number of checkpoints on volume.
219
220 What: /sys/fs/nilfs2/<device>/checkpoints/snapshots_number
221 Date: April 2014
222 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
223 Description:
224 Show number of snapshots on volume.
225
226 What: /sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
227 Date: April 2014
228 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
229 Description:
230 Show checkpoint number of the latest segment.
231
232 What: /sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
233 Date: April 2014
234 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
235 Description:
236 Show next checkpoint number.
237
238 What: /sys/fs/nilfs2/<device>/checkpoints/README
239 Date: April 2014
240 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
241 Description:
242 Describe attributes of /sys/fs/nilfs2/<device>/checkpoints
243 group.
244
245 What: /sys/fs/nilfs2/<device>/mounted_snapshots/README
246 Date: April 2014
247 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
248 Description:
249 Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
250 group.
251
252 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
253 Date: April 2014
254 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
255 Description:
256 Show number of inodes for snapshot.
257
258 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
259 Date: April 2014
260 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
261 Description:
262 Show number of blocks for snapshot.
263
264 What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
265 Date: April 2014
266 Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
267 Description:
268 Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
269 group.
270

3. 한국어 전문 번역

영어 원문의 문단 순서와 의미를 유지한 전체 번역입니다. 코드, 함수명, symbol과 URL은 원문 표기를 유지합니다.

NILFS2 revision

1-9
항목한국어 전문 번역
What/sys/fs/nilfs2/features/revision
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description현재 NILFS filesystem driver의 revision을 표시합니다. 이 값은 driver가 지원할 준비가 된 filesystem revision을 알려 줍니다.

NILFS2 README

10-15
항목한국어 전문 번역
What/sys/fs/nilfs2/features/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/features` group의 attributes를 설명합니다.

NILFS2 revision

16-23
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/revision
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume에 기록된 NILFS filesystem revision을 표시합니다. 이 값은 mount된 volume의 metadata structures가 사용하는 revision을 알려 줍니다.

NILFS2 blocksize

24-29
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/blocksize
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume의 block size를 bytes 단위로 표시합니다.

NILFS2 device size

30-35
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/device_size
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume 크기를 bytes 단위로 표시합니다.

NILFS2 free blocks

36-41
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/free_blocks
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume에 있는 free blocks 수를 표시합니다.

NILFS2 uuid

42-47
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/uuid
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume의 UUID(Universally Unique Identifier)를 표시합니다.

NILFS2 volume name

48-53
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/volume_name
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume의 label을 표시합니다.

NILFS2 README

54-59
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>` group의 attributes를 설명합니다.
NILFS2 device identity and capacity
AttributeValue
revisionOn-volume metadata revision
blocksizeBytes per block
device_sizeVolume size in bytes
free_blocksAvailable block count
uuidUniversally Unique Identifier
volume_nameVolume label

Mount된 volume의 revision, geometry, 여유 공간과 identity를 제공합니다.

NILFS2 sb write time

60-66
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/superblock/sb_write_time
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionSuperblock을 마지막으로 기록한 시간을 사람이 읽을 수 있는 형식으로 표시합니다.

NILFS2 sb write time secs

67-72
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionSuperblock을 마지막으로 기록한 시간을 seconds 단위로 표시합니다.

NILFS2 sb write count

73-78
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/superblock/sb_write_count
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description현재 superblock write count를 표시합니다.

NILFS2 sb update frequency

79-85
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/superblock/sb_update_frequency
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionSuperblock을 주기적으로 update하는 interval을 seconds 단위로 표시하거나 설정합니다.

NILFS2 README

86-92
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/superblock/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/superblock` group의 attributes를 설명합니다.
NILFS2 superblock state
AttributeMeaningUnit or format
sb_write_timeLast superblock writeHuman-readable
sb_write_time_secsLast superblock writeSeconds
sb_write_countCurrent write countCount
sb_update_frequencyPeriodic update intervalSeconds, read/write

마지막 write 시각, write count와 periodic update interval을 함께 봅니다.

NILFS2 last pseg block

93-98
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_pseg_block
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description가장 최근 segment가 시작하는 block number를 표시합니다.

NILFS2 last seg sequence

99-104
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_seg_sequence
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description가장 최근 segment의 sequence value를 표시합니다.

NILFS2 last seg checkpoint

105-110
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description가장 최근 segment의 checkpoint number를 표시합니다.

NILFS2 current seg sequence

111-116
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/current_seg_sequence
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description현재 segment sequence counter를 표시합니다.

NILFS2 current last full seg

117-122
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/current_last_full_seg
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description가장 최근에 완성된 full segment의 index number를 표시합니다.

NILFS2 next full seg

123-129
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/next_full_seg
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description다음에 사용할 full segment의 index number를 표시합니다.

NILFS2 next pseg offset

130-136
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/next_pseg_offset
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description현재 full segment 안에서 다음 partial segment가 시작할 offset을 표시합니다.

NILFS2 next checkpoint

137-142
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/next_checkpoint
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description다음 checkpoint number를 표시합니다.

NILFS2 last seg write time

143-149
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_seg_write_time
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description마지막 segment의 write time을 사람이 읽을 수 있는 형식으로 표시합니다.

NILFS2 last seg write time secs

150-155
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description마지막 segment의 write time을 seconds 단위로 표시합니다.

NILFS2 last nongc write time

156-162
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionCleaner operation이 아닌 작업이 마지막으로 기록한 segment의 write time을 사람이 읽을 수 있는 형식으로 표시합니다.

NILFS2 last nongc write time secs

163-169
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionCleaner operation이 아닌 작업이 마지막으로 기록한 segment의 write time을 seconds 단위로 표시합니다.

NILFS2 dirty data blocks count

170-175
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionDirty data blocks 수를 표시합니다.

NILFS2 README

176-182
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segctor/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/segctor` group의 attributes를 설명합니다.
NILFS2 segment constructor state
StateAttributes
Latest segmentlast_pseg_block, last_seg_sequence, last_seg_checkpoint
Current sequencecurrent_seg_sequence, current_last_full_seg
Next allocationnext_full_seg, next_pseg_offset, next_checkpoint
Write timeslast_seg_write_time, last_seg_write_time_secs
Non-cleaner writeslast_nongc_write_time, last_nongc_write_time_secs
Pending datadirty_data_blocks_count

`segctor`가 최근 segment와 다음 partial/full segment 및 checkpoint를 추적하는 값들입니다.

NILFS2 segments number

183-188
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segments/segments_number
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume에 있는 전체 segments 수를 표시합니다.

NILFS2 blocks per segment

189-194
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segments/blocks_per_segment
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionSegment 하나에 들어 있는 blocks 수를 표시합니다.

NILFS2 clean segments

195-200
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segments/clean_segments
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionClean segments 수를 표시합니다.

NILFS2 dirty segments

201-206
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segments/dirty_segments
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionDirty segments 수를 표시합니다.

NILFS2 README

207-213
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/segments/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/segments` group의 attributes를 설명합니다.
NILFS2 segment accounting
AttributeMeaning
segments_numberTotal segments on volume
blocks_per_segmentBlocks in one segment
clean_segmentsClean segment count
dirty_segmentsDirty segment count

Volume geometry와 clean/dirty segment 분포를 나타냅니다.

NILFS2 checkpoints number

214-219
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume에 있는 checkpoints 수를 표시합니다.

NILFS2 snapshots number

220-225
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/checkpoints/snapshots_number
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
DescriptionVolume에 있는 snapshots 수를 표시합니다.

NILFS2 last seg checkpoint

226-231
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description가장 최근 segment의 checkpoint number를 표시합니다.

NILFS2 next checkpoint

232-237
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description다음 checkpoint number를 표시합니다.

NILFS2 README

238-244
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/checkpoints/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/checkpoints` group의 attributes를 설명합니다.
NILFS2 checkpoint accounting
AttributeMeaning
checkpoints_numberCheckpoint count
snapshots_numberSnapshot count
last_seg_checkpointLatest segment checkpoint number
next_checkpointNext checkpoint number

Checkpoint와 snapshot 수, 최근 및 다음 checkpoint 번호를 제공합니다.

NILFS2 README

245-251
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/mounted_snapshots/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/mounted_snapshots` group의 내용을 설명합니다.

NILFS2 inodes count

252-257
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description해당 snapshot의 inode 수를 표시합니다.

NILFS2 blocks count

258-263
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description해당 snapshot의 block 수를 표시합니다.

NILFS2 README

264-269
항목한국어 전문 번역
What/sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
Date2014년 4월
Contact"Vyacheslav Dubeyko" <slava@dubeyko.com>
Description`/sys/fs/nilfs2/<device>/mounted_snapshots/<id>` group의 attributes를 설명합니다.
NILFS2 mounted snapshot accounting
Path suffixMeaning
<id>/inodes_countSnapshot inode count
<id>/blocks_countSnapshot block count
<id>/READMEPer-snapshot attribute description

각 mounted snapshot ID 아래에서 inode와 block 사용량을 조회합니다.