my notes: raid-notes-20110407a.txt
--
All Adults share the Responsibility
to help Raise Today's Children,
for they are Tomorrow's Society!
--- On Fri, 8/4/11, Gavin Flower <gavinflower@xxxxxxxxx> wrote:
> From: Gavin Flower <gavinflower@xxxxxxxxx>
> Subject: RAID6 data-check took almost 2 hours, clicking sounds, system unresponsive
> To: neilb@xxxxxxx
> Cc: linux-raid@xxxxxxxxxxxxxxx
> Date: Friday, 8 April, 2011, 13:32
[...]
Note that the check on md1 took almost 2 hours!
# grep md1 /var/log/messages
Apr 4 08:25:38 saturn kernel: [ 3.203058] md: md1 stopped.
Apr 4 08:25:38 saturn kernel: [ 3.221821] md/raid:md1: device sda2 operational as raid disk 0
Apr 4 08:25:38 saturn kernel: [ 3.223099] md/raid:md1: device sdc2 operational as raid disk 4
Apr 4 08:25:38 saturn kernel: [ 3.224364] md/raid:md1: device sdd2 operational as raid disk 3
Apr 4 08:25:38 saturn kernel: [ 3.225589] md/raid:md1: device sde2 operational as raid disk 2
Apr 4 08:25:38 saturn kernel: [ 3.226806] md/raid:md1: device sdb2 operational as raid disk 1
Apr 4 08:25:38 saturn kernel: [ 3.229256] md/raid:md1: allocated 5334kB
Apr 4 08:25:38 saturn kernel: [ 3.230500] md/raid:md1: raid level 6 active with 5 out of 5 devices, algorithm 2
Apr 4 08:25:38 saturn kernel: [ 3.232503] md1: detected capacity change from 0 to 314571227136
Apr 4 08:25:38 saturn kernel: [ 3.234559] dracut: mdadm: /dev/md1 has been started with 5 drives.
Apr 4 08:25:38 saturn kernel: [ 3.236257] md1: detected capacity change from 0 to 314571227136
Apr 4 08:25:38 saturn kernel: [ 3.237425] md1: unknown partition table
Apr 4 08:25:38 saturn kernel: [ 9.892068] EXT4-fs (md1): mounted filesystem with ordered data mode. Opts: (null)
Apr 5 07:05:28 saturn kernel: [65356.926079] Modules linked in: tcp_lp powernow_k8 freq_table mperf fuse ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_TCPMSS ipt_LOG xt_limit bridge stp llc rmd160 crypto_null camellia lzo lzo_compress cast6 cast5 deflate zlib_deflate cts ctr gcm ccm serpent blowfish twofish_x86_64 twofish_common ecb xcbc cbc sha256_generic sha512_generic des_generic cryptd aes_x86_64 aes_generic ah6 ah4 esp6 esp4 xfrm4_mode_beet xfrm4_tunnel tunnel4 xfrm4_mode_tunnel xfrm4_mode_transport xfrm6_mode_transport xfrm6_mode_ro xfrm6_mode_beet xfrm6_mode_tunnel ipcomp ipcomp6 xfrm_ipcomp xfrm6_tunnel tunnel6 af_key bluetooth rfkill nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 kvm_amd kvm usblp r8169 edac_core atl1e uvcvideo mii snd_hda_codec_atihdmi edac_mce_amd shpchp videodev v4l2_compat_ioctl32 asus_atk0110 serio_raw snd_hda_codec_via snd_usb_audio snd_usbmidi_lib joydev snd_hda_intel i2c_piix4 k10temp snd_hda_codec snd_hw
Apr 7 07:54:01 saturn kernel: [207546.188800] md: data-check of RAID array md1
Apr 7 07:54:01 saturn kernel: [207546.188868] md: delaying data-check of md0 until md1 has finished (they share one or more physical units)
Apr 7 07:54:01 saturn kernel: [207546.190517] md: delaying data-check of md2 until md1 has finished (they share one or more physical units)
Apr 7 07:54:01 saturn kernel: [207546.190523] md: delaying data-check of md0 until md1 has finished (they share one or more physical units)
Apr 7 08:42:08 saturn kernel: [210414.109856] md/raid:md1: read error corrected (8 sectors at 17195800 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109869] md/raid:md1: read error corrected (8 sectors at 17195808 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109872] md/raid:md1: read error corrected (8 sectors at 17195816 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109875] md/raid:md1: read error corrected (8 sectors at 17195824 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109877] md/raid:md1: read error corrected (8 sectors at 17195832 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109880] md/raid:md1: read error corrected (8 sectors at 17195840 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109883] md/raid:md1: read error corrected (8 sectors at 17195848 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109891] md/raid:md1: read error corrected (8 sectors at 17195856 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109894] md/raid:md1: read error corrected (8 sectors at 17195864 on sdc2)
Apr 7 08:42:08 saturn kernel: [210414.109897] md/raid:md1: read error corrected (8 sectors at 17195872 on sdc2)
Apr 7 08:54:39 saturn kernel: [211161.824066] md/raid:md1: read error corrected (8 sectors at 137014528 on sdc2)
Apr 7 09:51:47 saturn kernel: [214581.140560] md: md1: data-check done.
#
# date ; cat /proc/mdstat
Thu Apr 7 10:31:24 NZST 2011
Personalities : [raid6] [raid5] [raid4]
md2 : active raid6 sda4[0] sdc4[6] sdd4[3] sdb4[5] sde4[1]
1114745856 blocks super 1.1 level 6, 512k chunk, algorithm 2 [5/5] [UUUUU]
[==========>..........] check = 54.1% (201068416/371581952) finish=32.6min speed=87129K/sec
bitmap: 2/3 pages [8KB], 65536KB chunk
md1 : active raid6 sda2[0] sdc2[4] sdd2[3] sde2[2] sdb2[1]
307198464 blocks level 6, 512k chunk, algorithm 2 [5/5] [UUUUU]
md0 : active raid6 sda3[0] sdb3[4] sdd3[3] sdc3[2] sde3[1]
10751808 blocks level 6, 64k chunk, algorithm 2 [5/5] [UUUUU]
unused devices: <none>
#
From root@xxxxxxxxxxxxxxxxxxxxxxx Thu Apr 7 11:12:41 2011
Return-Path: <root@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 7 Apr 2011 11:12:40 +1200
From: Anacron <root@xxxxxxxxxxxxxxxxxxxxxxx>
To: root@xxxxxxxxxxxxxxxxxxxxxxx
Content-Type: text/plain; charset="ANSI_X3.4-1968"
Subject: Anacron job 'cron.weekly' on saturn
Status: R
/etc/cron.weekly/99-raid-check:
WARNING: mismatch_cnt is not 0 on /dev/md2
WARNING: mismatch_cnt is not 0 on /dev/md0
# cat /sys/block/md0/md/mismatch_cnt
128
# cat /sys/block/md1/md/mismatch_cnt
0
# cat /sys/block/md2/md/mismatch_cnt
28904
#
# e2fsck -f -n /dev/md2
e2fsck 1.41.12 (17-May-2010)
Warning! /dev/md2 is mounted.
Warning: skipping journal recovery because doing a read-only filesystem check.
Pass 1: Checking inodes, blocks, and sizes
Inodes that were part of a corrupted orphan linked list found. Fix? no
Inode 20186332 was part of the orphaned inode list. IGNORED.
Inode 20317506 was part of the orphaned inode list. IGNORED.
Inode 20317552 was part of the orphaned inode list. IGNORED.
Inode 20317955 was part of the orphaned inode list. IGNORED.
Inode 20447237 was part of the orphaned inode list. IGNORED.
Inode 20447245 was part of the orphaned inode list. IGNORED.
Inode 20447287 was part of the orphaned inode list. IGNORED.
Inode 20447296 was part of the orphaned inode list. IGNORED.
Inode 20447302 was part of the orphaned inode list. IGNORED.
Inode 20447311 was part of the orphaned inode list. IGNORED.
Inode 20447353 was part of the orphaned inode list. IGNORED.
Inode 20447360 was part of the orphaned inode list. IGNORED.
Inode 21500787 was part of the orphaned inode list. IGNORED.
Inode 21628913 was part of the orphaned inode list. IGNORED.
Inode 22158808 was part of the orphaned inode list. IGNORED.
Inode 22158811 was part of the orphaned inode list. IGNORED.
Inode 22158840 was part of the orphaned inode list. IGNORED.
Inode 22158842 was part of the orphaned inode list. IGNORED.
Inode 22158846 was part of the orphaned inode list. IGNORED.
Inode 25952949 was part of the orphaned inode list. IGNORED.
Inode 25953424 was part of the orphaned inode list. IGNORED.
Inode 25954542 was part of the orphaned inode list. IGNORED.
Deleted inode 45088771 has zero dtime. Fix? no
Inode 45088772 was part of the orphaned inode list. IGNORED.
Inode 45088773 was part of the orphaned inode list. IGNORED.
Inode 45088774 was part of the orphaned inode list. IGNORED.
Inode 45088775 was part of the orphaned inode list. IGNORED.
Inode 45088972 was part of the orphaned inode list. IGNORED.
Inode 45089022 was part of the orphaned inode list. IGNORED.
Inode 45089035 was part of the orphaned inode list. IGNORED.
Inode 45089037 was part of the orphaned inode list. IGNORED.
Inode 45089043 was part of the orphaned inode list. IGNORED.
Inode 45089044 was part of the orphaned inode list. IGNORED.
Inode 45089045 was part of the orphaned inode list. IGNORED.
Inode 45089057 was part of the orphaned inode list. IGNORED.
Inode 45089060 was part of the orphaned inode list. IGNORED.
Inode 45089062 was part of the orphaned inode list. IGNORED.
Inode 45089064 was part of the orphaned inode list. IGNORED.
Inode 45089067 was part of the orphaned inode list. IGNORED.
Inode 45089068 was part of the orphaned inode list. IGNORED.
Inode 45089070 was part of the orphaned inode list. IGNORED.
Inode 45089137 was part of the orphaned inode list. IGNORED.
Inode 45089150 was part of the orphaned inode list. IGNORED.
Inode 45089156 was part of the orphaned inode list. IGNORED.
Inode 45089190 was part of the orphaned inode list. IGNORED.
Inode 45089204 was part of the orphaned inode list. IGNORED.
Inode 45089205 was part of the orphaned inode list. IGNORED.
Inode 45089207 was part of the orphaned inode list. IGNORED.
Inode 45089213 was part of the orphaned inode list. IGNORED.
Inode 45089218 was part of the orphaned inode list. IGNORED.
Inode 45089238 was part of the orphaned inode list. IGNORED.
Inode 45089249 was part of the orphaned inode list. IGNORED.
Inode 45089257 was part of the orphaned inode list. IGNORED.
Inode 45089264 was part of the orphaned inode list. IGNORED.
Inode 45089282 was part of the orphaned inode list. IGNORED.
Inode 45089284 was part of the orphaned inode list. IGNORED.
Inode 45089286 was part of the orphaned inode list. IGNORED.
Inode 45089291 was part of the orphaned inode list. IGNORED.
Inode 45089297 was part of the orphaned inode list. IGNORED.
Inode 45089298 was part of the orphaned inode list. IGNORED.
Inode 45089305 was part of the orphaned inode list. IGNORED.
Inode 45089307 was part of the orphaned inode list. IGNORED.
Inode 45089319 was part of the orphaned inode list. IGNORED.
Inode 45089320 was part of the orphaned inode list. IGNORED.
Inode 63705919 was part of the orphaned inode list. IGNORED.
Inode 65938687 was part of the orphaned inode list. IGNORED.
Inode 65939256 was part of the orphaned inode list. IGNORED.
Inode 65939355 was part of the orphaned inode list. IGNORED.
Inode 65939368 was part of the orphaned inode list. IGNORED.
Inode 66191686 was part of the orphaned inode list. IGNORED.
Inode 66191689 was part of the orphaned inode list. IGNORED.
Inode 66191738 was part of the orphaned inode list. IGNORED.
Inode 66191741 was part of the orphaned inode list. IGNORED.
Inode 66191747 was part of the orphaned inode list. IGNORED.
Inode 66197970 was part of the orphaned inode list. IGNORED.
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences: -(2393344--2393372) -(2393792--2393809) -(2470272--2470336) -(2502016--2502080) +(7831552--7841252) +(7841792--7864319) -(79795252--79795253) -(79823488--79823615) -(79824000--79824123) -(79824640--79825142) -79826344 -79898014 -79923101 -(79923154--79923165) -(80123296--80123311) -(80152298--80152301) -80291729 -80291732 -80291759 -80847380 -(80847438--80847441) -80847502 -80847555 -80847736 -80874645 -80874664 -80875873 -(80875914--80875920) -80875927 -80875960 -(80876002--80876004) -80876048 -(80876052--80876056) -(80876600--80876601) -(80876639--80876641) -81330516 -(81334527--81334528) -81334535 -(81821915--81821947) -(81822170--81822204) -(81894559--81894562) -81923317 -81925743 -81925934 -(81925951--81925952) -(81926003--81926004) -(81956735--81957638) -(82971732--82971733) -(82971902--82971903) -(82971917--82971918) -(82971947--82971948) -(82971972--82971991) -85992203 -86516481 -87626360 -88613273 -104083592 -(104083946--104083948) -104083957 -104084073 -104084084 -104084487 -104137397 -104138111 -104236430 -(104236580--104236596) -(104236598--104236610) -(104301814--104301815) -(104301822--104301828) -104343080 -(105686863--105686864) -105686916 -(115903040--115903065) +(115903516--115903541) -134259847 -134284245 -134284593 -(134284674--134284675) -134285473 -(170994896--170994901) -170994959 -170995027 -(180397545--180397547) -(255167322--255167805) -(263756512--263756516) -(263764800--263764807) -(263779568--263779592) -(263782498--263782533) -(264798344--264798348) -(264804016--264804023) -(264804064--264804074) -(264804968--264804973) -(264809216--264809359)
Fix? no
Free blocks count wrong for group #239 (539, counted=32768).
Fix? no
Free blocks count wrong for group #2446 (23057, counted=23053).
Fix? no
Free blocks count wrong (256921638, counted=256646017).
Fix? no
Inode bitmap differences: -20186332 -20317506 -20317552 -20317955 -20447237 -20447245 -20447287 -20447296 -20447302 -20447311 -20447353 -20447360 -21500787 -21628913 -22158808 -22158811 -22158840 -22158842 -22158846 -25952949 -25953424 -25954542 -(45088771--45088775) -45088972 -45089022 -45089035 -45089037 -(45089043--45089045) -45089057 -45089060 -45089062 -45089064 -(45089067--45089068) -45089070 -45089137 -45089150 -45089156 -45089190 -(45089204--45089205) -45089207 -45089213 -45089218 -45089238 -45089249 -45089257 -45089264 -45089282 -45089284 -45089286 -45089291 -(45089297--45089298) -45089305 -45089307 -(45089319--45089320) -63705919 -65938687 -65939256 -65939355 -65939368 -66191686 -66191689 -66191738 -66191741 -66191747 -66197970
Fix? no
Directories count wrong for group #2624 (735, counted=734).
Fix? no
Directories count wrong for group #2640 (735, counted=734).
Fix? no
Directories count wrong for group #2704 (541, counted=540).
Fix? no
Free inodes count wrong (68295781, counted=68268234).
Fix? no
/dev/md2: ********** WARNING: Filesystem still has errors **********
/dev/md2: 1377179/69672960 files (0.4% non-contiguous), 21764826/278686464 blocks
#
# e2fsck -f -n /dev/sda4
e2fsck 1.41.12 (17-May-2010)
e2fsck: Device or resource busy while trying to open /dev/sda4
Filesystem mounted or opened exclusively by another program?
# mdadm --detail /dev/md2
/dev/md2:
Version : 1.1
Creation Time : Wed Nov 24 08:27:42 2010
Raid Level : raid6
Array Size : 1114745856 (1063.10 GiB 1141.50 GB)
Used Dev Size : 371581952 (354.37 GiB 380.50 GB)
Raid Devices : 5
Total Devices : 5
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Thu Apr 7 12:11:59 2011
State : active
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : localhost.localdomain:2
UUID : a511e656:a742a2f2:f4917939:2d333c7e
Events : 38609
Number Major Minor RaidDevice State
0 8 4 0 active sync /dev/sda4
1 8 68 1 active sync /dev/sde4
5 8 20 2 active sync /dev/sdb4
3 8 52 3 active sync /dev/sdd4
6 8 36 4 active sync /dev/sdc4
#
note absence of /dev/md0 (swap)!!!
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md2 1097254408 70799328 970717788 7% /
tmpfs 4097108 824 4096284 1% /dev/shm
/dev/sda1 1032088 128772 850888 14% /boot
/dev/md1 302377920 72501428 214516572 26% /data
#
# mdadm -Evs
ARRAY /dev/md1 level=raid6 num-devices=5 UUID=6f1176ae:a0ad6cac:bfe78010:bc810f04
devices=/dev/sde2,/dev/sdc2,/dev/sdd2,/dev/sdb2,/dev/sda2
ARRAY /dev/md0 level=raid6 num-devices=5 UUID=3b76ac20:8253f696:bfe78010:bc810f04
devices=/dev/sde3,/dev/sdc3,/dev/sdd3,/dev/sdb3,/dev/sda3
ARRAY /dev/md/2 level=raid6 metadata=1.1 num-devices=5 UUID=a511e656:a742a2f2:f4917939:2d333c7e name=localhost.localdomain:2
devices=/dev/sde4,/dev/sdc4,/dev/sdd4,/dev/sdb4,/dev/sda4
#
# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000ca3a
Device Boot Start End Blocks Id System
/dev/sda1 * 63 2097214 1048576 83 Linux
/dev/sda2 2097215 206897214 102400000 fd Linux raid autodetect
/dev/sda3 206897215 214065214 3584000 fd Linux raid autodetect
/dev/sda4 214066125 957233024 371583450 fd Linux raid autodetect
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000566c1
Device Boot Start End Blocks Id System
/dev/sdb1 63 2097214 1048576 83 Linux
/dev/sdb2 2097215 206897214 102400000 fd Linux raid autodetect
/dev/sdb3 206897215 214065214 3584000 fd Linux raid autodetect
/dev/sdb4 214066125 957233024 371583450 fd Linux raid autodetect
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000af79
Device Boot Start End Blocks Id System
/dev/sdd1 * 63 2097214 1048576 83 Linux
/dev/sdd2 2097215 206897214 102400000 fd Linux raid autodetect
/dev/sdd3 206897215 214065214 3584000 fd Linux raid autodetect
/dev/sdd4 214066125 957233024 371583450 fd Linux raid autodetect
Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00081ccd
Device Boot Start End Blocks Id System
/dev/sdc1 * 63 2097214 1048576 83 Linux
/dev/sdc2 2097215 206897214 102400000 fd Linux raid autodetect
/dev/sdc3 206897215 214065214 3584000 fd Linux raid autodetect
/dev/sdc4 214066125 957233024 371583450 fd Linux raid autodetect
Disk /dev/sde: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00081ccd
Device Boot Start End Blocks Id System
/dev/sde1 * 63 2097214 1048576 83 Linux
/dev/sde2 2097215 206897214 102400000 fd Linux raid autodetect
/dev/sde3 206897215 214065214 3584000 fd Linux raid autodetect
/dev/sde4 214066125 957233024 371583450 fd Linux raid autodetect
Disk /dev/md0: 11.0 GB, 11009851392 bytes
2 heads, 4 sectors/track, 2687952 cylinders, total 21503616 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 196608 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/md1: 314.6 GB, 314571227136 bytes
2 heads, 4 sectors/track, 76799616 cylinders, total 614396928 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 524288 bytes / 1572864 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table
Disk /dev/md2: 1141.5 GB, 1141499756544 bytes
2 heads, 4 sectors/track, 278686464 cylinders, total 2229491712 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 524288 bytes / 1572864 bytes
Disk identifier: 0x00000000
Disk /dev/md2 doesn't contain a valid partition table
#
# dmraid -b
/dev/sde: 976773168 total, "6VM2FE64"
/dev/sdc: 976773168 total, "5VMJ3RJE"
/dev/sdd: 976773168 total, "6VM2AM98"
/dev/sdb: 976773168 total, "6VM2H5W7"
/dev/sda: 976773168 total, "5VM1VNM9"
#
I ran badblocks for each drive concurrently, note that the one for sda took about an hour longer than the others, but it was sdc that reported a bad block.
# badblocks -s -v /dev/sda
Checking blocks 0 to 488386583
Checking for bad blocks (read-only test): done
Pass completed, 0 bad blocks found.
# badblocks -s -v /dev/sdb
Checking blocks 0 to 488386583
Checking for bad blocks (read-only test): done
Pass completed, 0 bad blocks found.
# badblocks -s -v /dev/sdc
Checking blocks 0 to 488386583
Checking for bad blocks (read-only test): 236817152one, 58:43 elapsed
done
Pass completed, 1 bad blocks found.
# badblocks -s -v /dev/sdd
Checking blocks 0 to 488386583
Checking for bad blocks (read-only test): done
Pass completed, 0 bad blocks found.
# badblocks -s -v /dev/sde
Checking blocks 0 to 488386583
Checking for bad blocks (read-only test): done
Pass completed, 0 bad blocks found.
#
Selected lines from the smartctl output:
# smartctl -a /dev/sda
Model Family: Seagate Barracuda 7200.12 family
Device Model: ST3500418AS
Serial Number: 5VM1VNM9
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 17
# smartctl -a /dev/sdb
Model Family: Seagate Barracuda 7200.12 family
Device Model: ST3500418AS
Serial Number: 6VM2H5W7
5 Reallocated_Sector_Ct 0x0033 099 099 036 Pre-fail Always - 42
# smartctl -a /dev/sdc
Model Family: Seagate Barracuda 7200.12 family
Device Model: ST3500418AS
Serial Number: 5VMJ3RJE
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
# smartctl -a /dev/sdd
Model Family: Seagate Barracuda 7200.12 family
Device Model: ST3500418AS
Serial Number: 6VM2AM98
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 1
# smartctl -a /dev/sde
Model Family: Seagate Barracuda 7200.12 family
Device Model: ST3500418AS
Serial Number: 6VM2FE64
5 Reallocated_Sector_Ct 0x0033 099 099 036 Pre-fail Always - 79
