/dev/md127:
Version : 1.2
Creation Time : Mon Mar 16 21:27:21 2020
Raid Level : raid5
Array Size : 9743319040 (9291.95 GiB 9977.16 GB)
Used Dev Size : 1948663808 (1858.39 GiB 1995.43 GB)
Raid Devices : 6
Total Devices : 5
Persistence : Superblock is persistent
Update Time : Thu May 27 12:25:01 2021
State : clean, degraded
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
Consistency Policy : unknown
Name : 33ea55f9:RAID-5-0 (local to host 33ea55f9)
UUID : 04d214c4:ee331e6a:74ca0a04:5e846481
Events : 468
Number Major Minor RaidDevice State
- 0 0 0 removed
1 8 19 1 active sync /dev/sdb3
2 8 35 2 active sync /dev/sdc3
3 8 51 3 active sync /dev/sdd3
4 8 67 4 active sync /dev/sde3
5 8 83 5 active sync /dev/sdf3
root@NAS-2:/RAID-5/srv1/# dd if=/dev/urandom of=Test.flie bs=64M count=32
dd: warning: partial read (33554431 bytes); suggest iflag=fullblock
0+32 records in
0+32 records out
1073741792 bytes (1.1 GB, 1.0 GiB) copied, 105.833 s, 10.1 MB/s
root@NAS-2:/RAID-5/srv1/# md5sum Test.flie
594eacb844ae053ab8bccadb9f3e43b4 Test.flie
root@NAS-2:/RAID-5/srv1/# md5sum Test.flie
522c8afffd428e14b425d31d8b5d7f52 Test.flie
9012.910037] md: requested-resync of RAID array md127
[ 9012.910043] md: minimum _guaranteed_ speed: 30000 KB/sec/disk.
[ 9012.910045] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for requested-resync.
[ 9012.910053] md: using 128k window, over a total of 1948663808k.
[ 9084.033911] BTRFS warning (device md0): csum failed ino 26800 off 3297280 csum 2509189606 expected csum 3194441580
[ 9084.454904] BTRFS warning (device md0): csum failed ino 26800 off 4055040 csum 1637586726 expected csum 1282422897
[ 9084.581585] BTRFS warning (device md0): csum failed ino 26800 off 6422528 csum 1593964658 expected csum 1961461496
[ 9084.612492] sh (25655): drop_caches: 3
[ 9084.614361] BTRFS warning (device md0): csum failed ino 26800 off 5677056 csum 1932001198 expected csum 1489994020
[ 9084.615384] BTRFS warning (device md0): csum failed ino 26800 off 5677056 csum 1932001198 expected csum 1489994020
[ 9084.622754] BTRFS warning (device md0): csum failed ino 26800 off 7094272 csum 3606228094 expected csum 4246393588
[ 9084.695542] sh (25658): drop_caches: 3
[ 9085.341325] sh (25699): drop_caches: 3
[ 9085.424200] sh (25700): drop_caches: 3
[ 9085.607585] sh (25701): drop_caches: 3
[ 9085.704849] sh (25702): drop_caches: 3
[ 9085.731888] sh (25704): drop_caches: 3
[ 9085.732521] mdcsrepair[25705]: segfault at 1902230 ip 00000000004048df sp 00007ffea4e019b0 error 4 in mdcsrepair[400000+10000]
[ 9087.009513] sh (25731): drop_caches: 3
[ 9087.110047] sh (25732): drop_caches: 3
[ 9087.557204] sh (25762): drop_caches: 3
[ 9087.638523] sh (25766): drop_caches: 3
[ 9101.700580] BTRFS warning (device md0): csum failed ino 26800 off 3297280 csum 2509189606 expected csum 3194441580
[ 9102.140147] BTRFS warning (device md0): csum failed ino 26800 off 6729728 csum 843258588 expected csum 430662742
[ 9102.141347] BTRFS warning (device md0): csum failed ino 26800 off 4530176 csum 4014326161 expected csum 3266211526
[ 9102.142287] BTRFS warning (device md0): csum failed ino 26800 off 4055040 csum 1637586726 expected csum 1282422897
[ 9102.142732] BTRFS warning (device md0): csum failed ino 26800 off 4804608 csum 2561880108 expected csum 3042484091
[ 9103.060502] BTRFS warning (device md0): csum failed ino 26800 off 2076672 csum 188520152 expected csum 651639183
[ 9103.276951] sh (26055): drop_caches: 3
[ 9103.277401] sh (26056): drop_caches: 3
[ 9103.277815] sh (26058): drop_caches: 3
[ 9103.281850] sh (26054): drop_caches: 3
[ 9103.282294] sh (26057): drop_caches: 3
[ 9103.434179] sh (26062): drop_caches: 3
[ 9103.437582] sh (26060): drop_caches: 3
[ 9103.438571] sh (26059): drop_caches: 3
[ 9103.465113] sh (26061): drop_caches: 3
[ 9103.467454] sh (26063): drop_caches: 3
[ 9103.467969] sh (26064): drop_caches: 3
[ 9103.566172] sh (26066): drop_caches: 3
[ 9103.567000] mdcsrepair[26070]: segfault at 1ca6238 ip 00000000004048df sp 00007fffea17d9d0 error 4 in mdcsrepair[400000+10000]
[ 9103.568900] sh (26067): drop_caches: 3
[ 9103.568901] sh (26065): drop_caches: 3
[ 9103.569312] mdcsrepair[26071]: segfault at 1d29220 ip 00000000004048df sp 00007ffcf1ef8270 error 4 in mdcsrepair[400000+10000]
[ 9103.599827] sh (26069): drop_caches: 3
[ 9103.600311] mdcsrepair[26092]: segfault at 25a7228 ip 00000000004048df sp 00007ffd96a6c460 error 4 in mdcsrepair[400000+10000]
[ 9103.639920] BTRFS warning (device md0): csum failed ino 26800 off 7749632 csum 976488093 expected csum 400533962
[ 9103.640132] BTRFS warning (device md0): csum failed ino 26800 off 7749632 csum 976488093 expected csum 400533962
[ 9105.156635] sh (26145): drop_caches: 3
[ 9105.262331] sh (26146): drop_caches: 3
[ 9105.338203] sh (26148): drop_caches: 3
[ 9105.338666] mdcsrepair[26149]: segfault at 14e0228 ip 00000000004048df sp 00007ffd2601bda0 error 4 in mdcsrepair[400000+10000]
[ 9392.955849] BTRFS warning (device md0): csum failed ino 26800 off 3297280 csum 2509189606 expected csum 3194441580
[ 9393.396182] sh (27133): drop_caches: 3
[ 9393.407254] BTRFS warning (device md0): csum failed ino 26800 off 5730304 csum 1721535998 expected csum 1266098857
[ 9393.555932] sh (27134): drop_caches: 3
[ 9393.680572] BTRFS warning (device md0): csum failed ino 26800 off 4276224 csum 2257014538 expected csum 2876039261
[ 9393.705564] sh (27136): drop_caches: 3
[ 9393.705994] mdcsrepair[27138]: segfault at fb1238 ip 00000000004048df sp 00007fffde04bee0 error 4 in mdcsrepair[400000+10000]
[ 9394.203447] BTRFS warning (device md0): csum failed ino 26800 off 5115904 csum 406066205 expected csum 870083223
[ 9394.203615] BTRFS warning (device md0): csum failed ino 26800 off 5115904 csum 406066205 expected csum 870083223
[ 9395.340527] sh (27180): drop_caches: 3
[ 9395.465281] sh (27182): drop_caches: 3
[ 9395.529394] sh (27184): drop_caches: 3
[ 9395.529871] mdcsrepair[27187]: segfault at 134d230 ip 00000000004048df sp 00007ffeebc6fb40 error 4 in mdcsrepair[400000+10000]
[ 9395.831133] sh (27222): drop_caches: 3
[ 9395.950588] sh (27223): drop_caches: 3
[ 9395.951581] sh (27224): drop_caches: 3
[ 9395.980226] sh (27226): drop_caches: 3
[ 9396.077257] sh (27227): drop_caches: 3
[ 9396.077683] mdcsrepair[27229]: segfault at 1b93238 ip 00000000004048df sp 00007fff9c18ac80 error 4 in mdcsrepair[400000+10000]
[11045.200001] BTRFS warning (device md0): csum failed ino 26800 off 2174976 csum 549178347 expected csum 190035297
[11045.294967] BTRFS warning (device md0): csum failed ino 26800 off 4857856 csum 2091937243 expected csum 1364968076
[11045.297180] BTRFS warning (device md0): csum failed ino 26800 off 5017600 csum 455988020 expected csum 918977635
[11045.323613] BTRFS warning (device md0): csum failed ino 26800 off 6045696 csum 3782956367 expected csum 3432053272
[11045.324193] sh (31561): drop_caches: 3
[11045.380741] BTRFS warning (device md0): csum failed ino 26800 off 7426048 csum 3231217454 expected csum 3983792249
[11045.540305] sh (31563): drop_caches: 3
[11046.101205] sh (31610): drop_caches: 3
[11046.200518] sh (31611): drop_caches: 3
[11046.201664] sh (31612): drop_caches: 3
[11046.212111] sh (31613): drop_caches: 3
[11046.212113] sh (31614): drop_caches: 3
[11046.226738] sh (31616): drop_caches: 3
[11046.226747] sh (31615): drop_caches: 3
[11046.238619] sh (31618): drop_caches: 3
[11046.239139] sh (31617): drop_caches: 3
[11046.239189] mdcsrepair[31619]: segfault at 2179228 ip 00000000004048df sp 00007ffdd7ed7ba0 error 4 in mdcsrepair[400000+10000]
[33839.238730] md: md127: requested-resync done.
/dev/md127:
Version : 1.2
Creation Time : Mon Mar 16 21:27:21 2020
Raid Level : raid5
Array Size : 9743319040 (9291.95 GiB 9977.16 GB)
Used Dev Size : 1948663808 (1858.39 GiB 1995.43 GB)
Raid Devices : 6
Total Devices : 6
Persistence : Superblock is persistent
Update Time : Sun May 30 11:49:08 2021
State : clean
Active Devices : 6
Working Devices : 6
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
Consistency Policy : unknown
Name : 33ea55f9:RAID-5-0 (local to host 33ea55f9)
UUID : 04d214c4:ee331e6a:74ca0a04:5e846481
Events : 979
Number Major Minor RaidDevice State
6 8 3 0 active sync /dev/sda3
1 8 19 1 active sync /dev/sdb3
2 8 35 2 active sync /dev/sdc3
3 8 51 3 active sync /dev/sdd3
4 8 67 4 active sync /dev/sde3
5 8 83 5 active sync /dev/sdf3
root@NAS-2:/RAID-5/TEST-FILE# dd if=/dev/urandom of=Test.flie bs=64M count=32
dd: warning: partial read (33554431 bytes); suggest iflag=fullblock
0+32 records in
0+32 records out
1073741792 bytes (1.1 GB, 1.0 GiB) copied, 103.542 s, 10.4 MB/s
root@NAS-2:/RAID-5/TEST-FILE# md5sum Test.flie
71b8e1ea63c2d543dd1b521698f1f40b Test.flie
Через 5-10 минут
root@NAS-2:/RAID-5/TEST-FILE# md5sum Test.flie
5952e1d1c6447efbbc4e76b13f090dbd Test.flie
[ 34.581568] Adding 523260k swap on /dev/md1. Priority:-1 extents:1 across:523260k
[ 199.391252] md: bind<sda1>
[ 200.553853] md: bind<sdc1>
[ 201.487715] md: bind<sdd1>
[ 202.385661] md: bind<sde1>
[ 203.268166] md: bind<sdf1>
[ 204.258426] md1: detected capacity change from 535822336 to 0
[ 204.258434] md: md1 stopped.
[ 204.258440] md: unbind<sdb2>
[ 204.263050] md: export_rdev(sdb2)
[ 204.394791] md: bind<sda2>
[ 204.394985] md: bind<sdb2>
[ 204.395552] md: bind<sdc2>
[ 204.395783] md: bind<sdd2>
[ 204.395959] md: bind<sde2>
[ 204.396345] md: bind<sdf2>
[ 204.415087] md/raid10:md1: not clean -- starting background reconstruction
[ 204.415094] md/raid10:md1: active with 6 out of 6 devices
[ 204.417162] md1: detected capacity change from 0 to 1604321280
[ 204.423052] md: resync of RAID array md1
[ 204.423057] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
[ 204.423060] md: using maximum available idle IO bandwidth (but not more than 1000 KB/sec) for resync.
[ 204.423067] md: using 128k window, over a total of 1566720k.
[ 204.776747] Adding 1566716k swap on /dev/md1. Priority:-1 extents:1 across:1566716k
[ 205.411408] md: bind<sda3>
[ 205.463247] md: bind<sdb3>
[ 205.463469] md: bind<sdc3>
[ 205.463657] md: bind<sdd3>
[ 205.463830] md: bind<sde3>
[ 205.463970] md: bind<sdf3>
[ 205.465330] md/raid:md127: not clean -- starting background reconstruction
[ 205.465358] md/raid:md127: device sdf3 operational as raid disk 5
[ 205.465361] md/raid:md127: device sde3 operational as raid disk 4
[ 205.465364] md/raid:md127: device sdd3 operational as raid disk 3
[ 205.465367] md/raid:md127: device sdc3 operational as raid disk 2
[ 205.465370] md/raid:md127: device sdb3 operational as raid disk 1
[ 205.465372] md/raid:md127: device sda3 operational as raid disk 0
[ 205.466449] md/raid:md127: allocated 6474kB
[ 205.466537] md/raid:md127: raid level 5 active with 6 out of 6 devices, algorithm 2
[ 205.466715] md127: detected capacity change from 0 to 9977158696960
[ 205.466828] md: resync of RAID array md127
[ 205.466831] md: minimum _guaranteed_ speed: 30000 KB/sec/disk.
[ 205.466833] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for resync.
[ 205.466839] md: using 128k window, over a total of 1948663808k.
[ 206.468138] md: recovery of RAID array md0
[ 206.468142] md: minimum _guaranteed_ speed: 30000 KB/sec/disk.
[ 206.468145] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
[ 206.468163] md: using 128k window, over a total of 4190208k.
[ 207.068749] BTRFS: device label 33ea55f9:RAID-5 devid 1 transid 5 /dev/md/RAID-5-0
[ 207.536727] BTRFS info (device md127): has skinny extents
[ 207.536733] BTRFS info (device md127): flagging fs with big metadata feature
[ 207.753158] BTRFS info (device md127): checking UUID tree
[ 207.779143] BTRFS info (device md127): quota is enabled
[ 208.539681] BTRFS info (device md127): qgroup scan completed (inconsistency flag cleared)
[ 212.002057] BTRFS info (device md127): new type for /dev/md127 is 2
[ 253.293798] md: md1: resync done.
[ 879.835567] md: md0: recovery done.
[29222.629724] md: md127: resync done.
[76853.949311] md: requested-resync of RAID array md0
[76853.949316] md: minimum _guaranteed_ speed: 30000 KB/sec/disk.
[76853.949319] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for requested-resync.
[76853.949325] md: using 128k window, over a total of 4190208k.
[76860.989358] md: requested-resync of RAID array md1
[76860.989364] md: minimum _guaranteed_ speed: 30000 KB/sec/disk.
[76860.989367] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for requested-resync.
[76860.989373] md: using 128k window, over a total of 1566720k.
[76869.627690] md: md1: requested-resync done.
[76968.845656] md: md0: requested-resync done.
[77284.591955] BTRFS warning (device md127): csum failed ino 259 off 1257472 csum 2226542714 expected csum 2841507629
[77284.592253] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.599233] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.626801] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.627575] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.628600] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.629590] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.632721] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.633958] BTRFS warning (device md127): csum failed ino 259 off 471040 csum 833631200 expected csum 475765943
[77284.640105] BTRFS warning (device md127): csum failed ino 259 off 876544 csum 2896134451 expected csum 2171874916
root@nas-2:/RAID-5/TEST# dd if=/dev/urandom of=Test.flie bs=64M count=32
dd: warning: partial read (33554431 bytes); suggest iflag=fullblock
0+32 records in
0+32 records out
1073741792 bytes (1.1 GB, 1.0 GiB) copied, 104.606 s, 10.3 MB/s
root@nas-2:/RAID-5/TEST# md5sum Test.flie
d72ea9d9c3c2641612de18c42deadccb Test.flie
root@nas-2:/RAID-5/TEST# md5sum Test.flie
d72ea9d9c3c2641612de18c42deadccb Test.flie
root@nas-2:/RAID-5/TEST# md5sum Test.flie
d72ea9d9c3c2641612de18c42deadccb Test.flie
root@nas-2:/RAID-5/TEST# md5sum Test.flie
d72ea9d9c3c2641612de18c42deadccb Test.flie
Загружаю файлы на сервер, и качаю обратно, потом тестирую.
root@nas-2:/RAID-5/TEST# md5sum Test.flie
md5sum: Test.flie: Input/output error
root@nas-2:/RAID-5/TEST# md5sum Test.flie
md5sum: Test.flie: Input/output error
May 30 14:35:29 NAS-2 kernel: mdcsrepair[13627]: segfault at 2325238 ip 00000000004048df sp 00007fff08ffa500 error 4 in mdcsrepair[400000+10000]
May 30 14:35:29 NAS-2 kernel: sh (13626): drop_caches: 3
May 30 14:35:29 NAS-2 kernel: sh (13625): drop_caches: 3
May 30 14:35:29 NAS-2 kernel: mdcsrepair[13639]: segfault at 1cd6230 ip 00000000004048df sp 00007ffeba060c50 error 4 in mdcsrepair[400000+10000]
May 30 14:35:29 NAS-2 kernel: mdcsrepair[13640]: segfault at bfe230 ip 00000000004048df sp 00007ffe6f442530 error 4 in mdcsrepair[400000+10000]
May 30 14:35:30 NAS-2 kernel: sh (13647): drop_caches: 3
May 30 14:35:30 NAS-2 kernel: sh (13648): drop_caches: 3
May 30 17:47:16 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6852608 csum 846329252 expected csum 429493038
May 30 17:47:16 NAS-2 kernel: sh (9521): drop_caches: 3
May 30 17:47:17 NAS-2 kernel: sh (9522): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 2220032 csum 4138936066 expected csum 3680012373
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 5521408 csum 988873707 expected csum 286883169
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 5603328 csum 2031798327 expected csum 1425106784
May 30 20:41:32 NAS-2 kernel: sh (2563): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6266880 csum 1389706193 expected csum 2134807686
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6754304 csum 1977957496 expected csum 1477350191
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6754304 csum 1977957496 expected csum 1477350191
May 30 20:41:32 NAS-2 kernel: sh (2567): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: sh (2569): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: mdcsrepair[2571]: segfault at 1fd5230 ip 00000000004048df sp 00007ffe294f0c30 error 4 in mdcsrepair[400000+10000]
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 2220032 csum 4138936066 expected csum 3680012373
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepaird: mdcsrepair /dev/md0 622764032 4096 fdd84c09 aa77a724 //var/readynasd/db.sq3
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 5521408 csum 988873707 expected csum 286883169
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 5603328 csum 2031798327 expected csum 1425106784
May 30 20:41:32 NAS-2 kernel: sh (2563): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6266880 csum 1389706193 expected csum 2134807686
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6754304 csum 1977957496 expected csum 1477350191
May 30 20:41:32 NAS-2 kernel: BTRFS warning (device md0): csum failed ino 26800 off 6754304 csum 1977957496 expected csum 1477350191
May 30 20:41:32 NAS-2 kernel: sh (2567): drop_caches: 3
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepair: repairing /dev/md0 @ 622764032 [//var/readynasd/db.sq3] succeeded.
May 30 20:41:32 NAS-2 kernel: sh (2569): drop_caches: 3
May 30 20:41:32 NAS-2 kernel: mdcsrepair[2571]: segfault at 1fd5230 ip 00000000004048df sp 00007ffe294f0c30 error 4 in mdcsrepair[400000+10000]
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepaird: mdcsrepair /dev/md0 626065408 4096 14fc0ec5 9e82e6ee //var/readynasd/db.sq3
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepaird: mdcsrepair /dev/md0 626147328 4096 c837e586 9f980eab //var/readynasd/db.sq3
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepaird: mdcsrepair /dev/md0 626810880 4096 2ec42aad 796bc180 //var/readynasd/db.sq3
May 30 20:41:32 NAS-2 mdcsrepaird[2862]: mdcsrepaird: mdcsrepair /dev/md0 627298304 4096 87c31a8a d06cf1a7 //var/readynasd/db.sq3
May 30 20:41:33 NAS-2 kernel: sh (2616): drop_caches: 3
May 30 20:41:33 NAS-2 kernel: sh (2617): drop_caches: 3
May 30 20:41:33 NAS-2 mdcsrepaird[2862]: mdcsrepair: designated data mismatches bad checksum /dev/md0 @ 626065408
May 30 20:41:33 NAS-2 kernel: sh (2620): drop_caches: 3
May 30 20:41:33 NAS-2 kernel: sh (2619): drop_caches: 3
May 30 20:41:33 NAS-2 mdcsrepaird[2862]: mdcsrepair: designated data mismatches bad checksum /dev/md0 @ 627298304
May 30 20:41:33 NAS-2 kernel: sh (2618): drop_caches: 3
May 30 20:41:33 NAS-2 kernel: sh (2622): drop_caches: 3
May 30 20:41:33 NAS-2 mdcsrepaird[2862]: mdcsrepair: designated data mismatches bad checksum /dev/md0 @ 626147328
May 30 20:41:33 NAS-2 kernel: sh (2621): drop_caches: 3
May 30 20:41:33 NAS-2 kernel: sh (2623): drop_caches: 3
May 30 20:41:33 NAS-2 mdcsrepaird[2862]: mdcsrepair: designated data mismatches bad checksum /dev/md0 @ 626810880
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>dd if=/dev/urandom of=Test.flie bs=64M count=32</b>
dd: warning: partial read (33554431 bytes); suggest iflag=fullblock
0+32 records in
0+32 records out
1073741792 bytes (1.1 GB, 1.0 GiB) copied, 103.885 s, 10.3 MB/s
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>md5sum Test.flie</b>
0542952ac3e7e9d494a26a37c41a6c9e Test.flie
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>stat Test.flie</b>
File: 'Test.flie'
Size: 1073741792 Blocks: 2097160 IO Block: 4096 regular file
Device: 35h/53d Inode: 1049 Links: 1
Access: (0660/-rw-rw----) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-05-31 10:54:16.835309473 +0300
Modify: 2021-05-31 10:56:00.681735098 +0300
Change: 2021-05-31 10:56:00.681735098 +0300
Birth: -
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>md5sum Test.flie</b>
0542952ac3e7e9d494a26a37c41a6c9e Test.flie
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>md5sum Test.flie</b>
0efe119d6aba0648ba32fc722fd72095 Test.flie
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>stat Test.flie</b>
File: 'Test.flie'
Size: 1073741792 Blocks: 2097152 IO Block: 4096 regular file
Device: 35h/53d Inode: 1049 Links: 1
Access: (0660/-rw-rw----) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-05-31 10:54:16.835309473 +0300
Modify: 2021-05-31 10:56:00.681735098 +0300
Change: 2021-05-31 10:56:00.681735098 +0300
Birth: -
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>md5sum Test.flie</b>
d289a229916a49bede053b9cdc778ec6 Test.flie
root@HQ-NAS-2:/RAID-5/TEST-FILE# <b>stat Test.flie</b>
File: 'Test.flie'
Size: 1073741792 Blocks: 2097152 IO Block: 4096 regular file
Device: 35h/53d Inode: 1049 Links: 1
Access: (0660/-rw-rw----) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-05-31 10:54:16.835309473 +0300
Modify: 2021-05-31 10:56:00.681735098 +0300
Change: 2021-05-31 10:56:00.681735098 +0300
Birth: -