Ich habe ein Raid 5 mit 4 Festplatten und es funktioniert nicht. Ich kann nicht feststellen, welche Festplatte ersetzt werden muss. Können Sie mir helfen? Vielen Dank im Voraus
Hier einige Informationen
root@debian:~# mount /dev/md0 /mnt/
mount: /dev/md0: can't read superblock
root@debian:~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md0 : inactive sda2[0](S) sdc2[2](S) sdb2[1](S) sdd2[3](S)
15558811648 blocks super 1.2
md1 : active (auto-read-only) raid5 sdc3[2] sdb3[1] sdd3[3] sda3[0]
49950720 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU]
unused devices: <none>
root@debian:~# mdadm -E /dev/sd[a-d]2
/dev/sda2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 28325057:d60d1808:d0f8b823:c32eb0e7
Name : 8aServer:0
Creation Time : Fri Sep 18 16:06:57 2015
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 7779405824 (3709.51 GiB 3983.06 GB)
Array Size : 11669108736 (11128.53 GiB 11949.17 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=0 sectors
State : clean
Device UUID : 0d668096:d7c99df1:54709144:27fc4ff7
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Dec 24 10:59:49 2020
Checksum : 4ea4321 - correct
Events : 3213934
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : A.A. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdb2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 28325057:d60d1808:d0f8b823:c32eb0e7
Name : 8aServer:0
Creation Time : Fri Sep 18 16:06:57 2015
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 7779405824 (3709.51 GiB 3983.06 GB)
Array Size : 11669108736 (11128.53 GiB 11949.17 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262056 sectors, after=0 sectors
State : active
Device UUID : d5db5aba:78587f78:09b296fe:fc945872
Internal Bitmap : 8 sectors from superblock
Update Time : Sun Jul 5 06:51:16 2020
Bad Block Log : 512 entries available at offset 72 sectors
Checksum : e3d3687b - correct
Events : 1659832
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdc2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 28325057:d60d1808:d0f8b823:c32eb0e7
Name : 8aServer:0
Creation Time : Fri Sep 18 16:06:57 2015
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 7779405824 (3709.51 GiB 3983.06 GB)
Array Size : 11669108736 (11128.53 GiB 11949.17 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=0 sectors
State : clean
Device UUID : 9a5afde5:0036d08e:87eb6c78:a9e9c305
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Dec 24 10:59:49 2020
Checksum : 33e90afd - correct
Events : 3213934
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : A.A. ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdd2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 28325057:d60d1808:d0f8b823:c32eb0e7
Name : 8aServer:0
Creation Time : Fri Sep 18 16:06:57 2015
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 7779405824 (3709.51 GiB 3983.06 GB)
Array Size : 11669108736 (11128.53 GiB 11949.17 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=0 sectors
State : active
Device UUID : 8fb94746:069f6199:d849383b:60f4eef5
Internal Bitmap : 8 sectors from superblock
Update Time : Wed Dec 23 19:38:11 2020
Checksum : 51bf6683 - correct
Events : 3213899
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : A.AA ('A' == active, '.' == missing, 'R' == replacing)
root@debian:~# e2fsck /dev/md0
e2fsck 1.43.4 (31-Jan-2017)
e2fsck: Invalid argument while trying to open /dev/md0
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
or
e2fsck -b 32768 <device>
Antwort1
Ich hatte zwei defekte Festplatten, die ich in den Protokollen mit dem Schlüssel "Update Time" sah, eine davon starb im Juni und die andere am 23. Dezember
Ich habe die Festplatte repariert und konnte die Informationen abrufen.