Hallo,
Ich habe mir vor längerer Zeit ein Software Raid6 eingerichtet.
Das System war plötzlich nicht mehr über Netzwerk erreichbar; es war im emergency Mode.
Nach Auskommentieren des Raids in der fstab bootet es wieder und ist über Netzwerk erreichbar.
Nur das Raid will nicht. Leider habe ich keine Datensicherung hiervon und möchte bei der wiederherstellung nicht die Daten löschen.
Ein cat /proc/mdstat
Code
Personalities : [raid6] [raid5] [raid4]
md0 : inactive sdg1[6] sdh1[7] sdd1[8] sde1[4] sdc1[3] sda1[0] sdb1[1]
5128007752 blocks super 1.0
unused devices: <none>Meine sdf1[2] fehlt 
Ein mdadm --examine DEVICE liefert mir folgendes:
Code
/dev/sda1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : 2d189cf1:85cf20bf:2ff9fb6c:b466f8c3
Update Time : Wed Apr 2 12:07:22 2014
Checksum : ab325ef5 - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 0
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdb1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : f23602c1:309ae06e:21798539:2355e337
Update Time : Wed Apr 2 12:07:22 2014
Checksum : 6accb6c6 - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 1
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdc1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : 00cc0e8c:f2292f5b:f4594b2a:d8e2ca49
Update Time : Wed Apr 2 12:07:22 2014
Checksum : 24d54a20 - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 2
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdd1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : b553c126:9799e4a2:72eaea48:e9034c08
Update Time : Wed Apr 2 12:07:22 2014
Checksum : e45df30d - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 7
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sde1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : 0afaddb7:2baf4083:bc0939d7:a3ca953c
Update Time : Wed Apr 2 12:07:22 2014
Checksum : 186e94f8 - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 6
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdf1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : 4b459ade:ca63a8e6:0babba0b:ab12c532
Update Time : Wed Apr 2 12:07:22 2014
Checksum : cd1946cd - correct
Events : 0
Layout : left-symmetric
Chunk Size : 128K
Device Role : spare
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdg1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : f389fa65:98d3a9ca:826da1a1:0ef00be7
Update Time : Wed Apr 2 12:07:22 2014
Checksum : 82d2d281 - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 4
Array State : AAAAA.AA ('A' == active, '.' == missing)Code
/dev/sdh1:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : f1d593e5:c1a8a3cb:a46159db:060a86ac
Name : sv01:0 (local to host sv01)
Creation Time : Sat Jan 5 12:49:29 2013
Raid Level : raid6
Raid Devices : 8
Avail Dev Size : 1465145072 (698.64 GiB 750.15 GB)
Array Size : 4395434496 (4191.81 GiB 4500.92 GB)
Used Dev Size : 1465144832 (698.64 GiB 750.15 GB)
Super Offset : 1465145328 sectors
State : active
Device UUID : fd7eaf0b:71300681:1ead983f:1a203368
Update Time : Wed Apr 2 12:07:22 2014
Checksum : fe02940b - correct
Events : 2832230
Layout : left-symmetric
Chunk Size : 128K
Device Role : Active device 3
Array State : AAAAA.AA ('A' == active, '.' == missing)Wie mache ich weiter um das Raid wieder herzustellen?
VG
Krodon
P.S. ich habe das Raid wiederhergestellt mittels mdadm --assemble --force /dev/md0 /dev/sdg1 /dev/sdh1 /dev/sdd1 /dev/sde1 /dev/sdc1 /dev/sda1 /dev/sdb1
Nun Stellt sich die Frage wie ich die defekte hdd finden kann?????