Несколько ночей назад у меня произошел сбой массива RAID10, и я должен признать, что я совершенно потерян во всем этом. Я много гуглил и не понимаю, что происходит.
Если бы кто-нибудь здесь мог дать мне какое-то понимание, чтобы я пошёл в полупродуктивном направлении, я был бы очень благодарен.
Я разместил вывод dmesg и mdadm здесь: http://pastebin.com/PwtaHP9e
root@sysresccd /root % cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : inactive sdb2[2](S) sda2[4](S) sdd2[3](S) sdc2[1](S)
3905625088 blocks super 1.1
md0 : active raid1 sdc1[1] sdd1[3] sdb1[2]
255936 blocks super 1.0 [4/3] [_UUU]
unused devices:
root@sysresccd /root % dmesg | grep raid [ 10.228754] md: raid0 personality registered for level 0 [ 10.230465] md: raid1 personality registered for level 1 [ 10.255010] raid6: int64x1 2039 MB/s [ 10.272036] raid6: int64x2 2265 MB/s [ 10.289035] raid6: int64x4 1949 MB/s [ 10.306028] raid6: int64x8 1425 MB/s [ 10.323032] raid6: sse2x1 3218 MB/s [ 10.340017] raid6: sse2x2 4085 MB/s [ 10.357021] raid6: sse2x4 6691 MB/s [ 10.357022] raid6: using algorithm sse2x4 (6691 MB/s) [ 10.358839] md: raid6 personality registered for level 6 [ 10.358846] md: raid5 personality registered for level 5 [ 10.358847] md: raid4 personality registered for level 4 [ 10.363035] md: raid10 personality registered for level 10 [ 10.750614] md/raid1:md0: active with 3 out of 4 mirrors [ 44.530653] md: invalid raid superblock magic on sda1 root@sysresccd /root % root@sysresccd /root % dmesg | grep md [ 0.000000] Linux version 3.2.28-std300-amd64 (root@catalyst) (gcc version 4.4.7 (Gentoo 4.4.7 p1.0, pie-0.4.5) ) #2 SMP Tue Aug 21 18:35:38 UTC 2012 [ 2.568955] usb usb1: Manufacturer: Linux 3.2.28-std300-amd64 ehci_hcd [ 2.584953] usb usb2: Manufacturer: Linux 3.2.28-std300-amd64 ehci_hcd [ 2.588163] usb usb3: Manufacturer: Linux 3.2.28-std300-amd64 uhci_hcd [ 2.590887] usb usb4: Manufacturer: Linux 3.2.28-std300-amd64 uhci_hcd [ 2.597811] usb usb5: Manufacturer: Linux 3.2.28-std300-amd64 uhci_hcd [ 2.600571] usb usb6: Manufacturer: Linux 3.2.28-std300-amd64 uhci_hcd [ 10.225876] md: linear personality registered for level -1 [ 10.227323] md: multipath personality registered for level -4 [ 10.228754] md: raid0 personality registered for level 0 [ 10.230465] md: raid1 personality registered for level 1 [ 10.358839] md: raid6 personality registered for level 6 [ 10.358846] md: raid5 personality registered for level 5 [ 10.358847] md: raid4 personality registered for level 4 [ 10.363035] md: raid10 personality registered for level 10 [ 10.733472] md: md0 stopped. [ 10.734535] md: bind [ 10.734667] md: bind [ 10.734803] md: bind [ 10.734942] md: bind [ 10.734958] md: kicking non-fresh sda1 from array! [ 10.734963] md: unbind [ 10.749093] md: export_rdev(sda1) [ 10.750614] md/raid1:md0: active with 3 out of 4 mirrors [ 10.750641] md0: detected capacity change from 0 to 262078464 [ 10.751856] md0: unknown partition table [ 10.992977] md: md1 stopped. [ 10.994538] md: bind [ 10.994672] md: bind [ 10.994820] md: bind [ 10.994982] md: bind [ 44.523203] md: Autodetecting RAID arrays. [ 44.530653] md: invalid raid superblock magic on sda1 [ 44.530656] md: sda1 does not have a valid v0.90 superblock, not importing! [ 44.530701] md: could not open unknown-block(8,2). [ 44.530711] md: could not open unknown-block(8,17). [ 44.530714] md: could not open unknown-block(8,18). [ 44.530718] md: could not open unknown-block(8,33). [ 44.530722] md: could not open unknown-block(8,34). [ 44.530726] md: could not open unknown-block(8,49). [ 44.530729] md: could not open unknown-block(8,50). [ 44.530731] md: Scanned 8 and added 0 devices. [ 44.530732] md: autorun ... [ 44.530733] md: ... autorun DONE. root@sysresccd /root % mdadm --assemble --scan -v mdadm: looking for devices for further assembly mdadm: no recogniseable superblock on /dev/md/0 mdadm: cannot open device /dev/sr0: No medium found mdadm: cannot open device /dev/sdd2: Device or resource busy mdadm: cannot open device /dev/sdd1: Device or resource busy mdadm: cannot open device /dev/sdd: Device or resource busy mdadm: cannot open device /dev/sdc2: Device or resource busy mdadm: cannot open device /dev/sdc1: Device or resource busy mdadm: cannot open device /dev/sdc: Device or resource busy mdadm: cannot open device /dev/sdb2: Device or resource busy mdadm: cannot open device /dev/sdb1: Device or resource busy mdadm: cannot open device /dev/sdb: Device or resource busy mdadm: cannot open device /dev/sda2: Device or resource busy mdadm: cannot open device /dev/sda: Device or resource busy mdadm: cannot open device /dev/loop0: Device or resource busy mdadm: /dev/sda1 is identified as a member of /dev/md/localhost.localdomain:0, slot 0. mdadm: no uptodate device for slot 1 of /dev/md/localhost.localdomain:0 mdadm: no uptodate device for slot 2 of /dev/md/localhost.localdomain:0 mdadm: no uptodate device for slot 3 of /dev/md/localhost.localdomain:0 mdadm: added /dev/sda1 to /dev/md/localhost.localdomain:0 as 0 mdadm: /dev/md/localhost.localdomain:0 has been started with 1 drive (out of 4). mdadm: looking for devices for further assembly mdadm: looking for devices for further assembly mdadm: no recogniseable superblock on /dev/md/0 mdadm: no recogniseable superblock on /dev/md/0 mdadm: cannot open device /dev/sr0: No medium found mdadm: cannot open device /dev/sdd2: Device or resource busy mdadm: cannot open device /dev/sdd1: Device or resource busy mdadm: cannot open device /dev/sdd: Device or resource busy mdadm: cannot open device /dev/sdc2: Device or resource busy mdadm: cannot open device /dev/sdc1: Device or resource busy mdadm: cannot open device /dev/sdc: Device or resource busy mdadm: cannot open device /dev/sdb2: Device or resource busy mdadm: cannot open device /dev/sdb1: Device or resource busy mdadm: cannot open device /dev/sdb: Device or resource busy mdadm: cannot open device /dev/sda2: Device or resource busy mdadm: cannot open device /dev/sda1: Device or resource busy mdadm: cannot open device /dev/sda: Device or resource busy mdadm: cannot open device /dev/loop0: Device or resource busy
root@sysresccd /root % mdadm --examine /dev/sd[abcd]2
/dev/sda2:
Magic : a92b4efc
Version : 1.1
Feature Map : 0x1
Array UUID : 160f35df:54055a13:77806c03:b12aea12
Name : localhost.localdomain:1
Creation Time : Thu Sep 12 02:37:10 2013
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 1953007616 (931.27 GiB 999.94 GB)
Array Size : 3905492992 (1862.28 GiB 1999.61 GB)
Used Dev Size : 1952746496 (931.14 GiB 999.81 GB)
Data Offset : 2048 sectors
Super Offset : 0 sectors
State : clean
Device UUID : ae4e65b3:95c4da54:d295cf4c:de32e851
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Oct 21 02:21:07 2013
Checksum : f86dd3de - correct
Events : 0
Layout : near=2
Chunk Size : 512K
Device Role : spare
Array State : ..AA ('A' == active, '.' == missing)
/dev/sdb2:
Magic : a92b4efc
Version : 1.1
Feature Map : 0x1
Array UUID : 160f35df:54055a13:77806c03:b12aea12
Name : localhost.localdomain:1
Creation Time : Thu Sep 12 02:37:10 2013
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 1952747520 (931.14 GiB 999.81 GB)
Array Size : 3905492992 (1862.28 GiB 1999.61 GB)
Used Dev Size : 1952746496 (931.14 GiB 999.81 GB)
Data Offset : 262144 sectors
Super Offset : 0 sectors
State : clean
Device UUID : 9fdb73ad:ab3b67ef:62cf56cb:48a7cbae
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Oct 21 02:21:07 2013
Checksum : 6873c900 - correct
Events : 17186
Layout : near=2
Chunk Size : 512K
Device Role : Active device 2
Array State : ..AA ('A' == active, '.' == missing)
/dev/sdc2:
Magic : a92b4efc
Version : 1.1
Feature Map : 0x1
Array UUID : 160f35df:54055a13:77806c03:b12aea12
Name : localhost.localdomain:1
Creation Time : Thu Sep 12 02:37:10 2013
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 1952747520 (931.14 GiB 999.81 GB)
Array Size : 3905492992 (1862.28 GiB 1999.61 GB)
Used Dev Size : 1952746496 (931.14 GiB 999.81 GB)
Data Offset : 262144 sectors
Super Offset : 0 sectors
State : clean
Device UUID : 5d5f5fbf:4b2140f9:3f622131:79f52f32
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Oct 21 02:08:42 2013
Checksum : 6d691077 - correct
Events : 17175
Layout : near=2
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing)
/dev/sdd2:
Magic : a92b4efc
Version : 1.1
Feature Map : 0x1
Array UUID : 160f35df:54055a13:77806c03:b12aea12
Name : localhost.localdomain:1
Creation Time : Thu Sep 12 02:37:10 2013
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 1952747520 (931.14 GiB 999.81 GB)
Array Size : 3905492992 (1862.28 GiB 1999.61 GB)
Used Dev Size : 1952746496 (931.14 GiB 999.81 GB)
Data Offset : 262144 sectors
Super Offset : 0 sectors
State : clean
Device UUID : 57e6e332:c199a57b:94846dd1:5551635d
Internal Bitmap : 8 sectors from superblock
Update Time : Mon Oct 21 02:21:07 2013
Checksum : 2ed0910d - correct
Events : 17186
Layout : near=2
Chunk Size : 512K
Device Role : Active device 3
Array State : ..AA ('A' == active, '.' == missing)