Estou tentando recuperar os dados de um amigo de um laptop Sony Vaio VGN-AW47GH. Tem um par de Toshiba MK5055GS 2,5 "HDD 500GB combinado (de acordo com a minha leitura) em um 1TB RAID0. O laptop não está mais funcionando, então eu estou tentando trazê-los no meu sistema Ubuntu 14.04.
Preciso de ajuda com a sintaxe do arquivo /etc/mdadm/mdadm.conf para tornar o RAID0 montável pelo Ubuntu. Espero que alguém familiarizado com mdadm.conf seja capaz de me apontar na direção certa, pois a página de manual e as pesquisas on-line não estão deixando claro o suficiente para eu ajustar.
Eles estão aparecendo como /dev/sda & /dev/sdb e obtenho o seguinte de mdadm examine/scan depois de executar mdadm --assemble --scan
# mdadm --examine --scan /dev/sda
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
ARRAY metadata=imsm UUID=99fcd315:2ac78f08:08014b0a:33f4585f
ARRAY /dev/md/Volume0 container=99fcd315:2ac78f08:08014b0a:33f4585f member=0 UUID=245d2401:2ad11a3c:6edacb92:47ce3340
Resultados examine / scan / dev / sdb
# mdadm --examine --scan /dev/sdb
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
ARRAY metadata=imsm UUID=99fcd315:2ac78f08:08014b0a:33f4585f
ARRAY /dev/md/Volume0 container=99fcd315:2ac78f08:08014b0a:33f4585f member=0 UUID=245d2401:2ad11a3c:6edacb92:47ce3340
Aqui estão os resultados da análise sem a opção --scan:
# mdadm --examine /dev/sda
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.0.00
Orig Family : 08b9238d
Family : 08b9238d
Generation : 00001c59
Attributes : All supported
UUID : 99fcd315:2ac78f08:08014b0a:33f4585f
Checksum : 1b2c84f0 correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk01 Serial : 9934C0KIT
State : active
Id : 00040000
Usable Size : 976768264 (465.76 GiB 500.11 GB)
[Volume0]:
UUID : 245d2401:2ad11a3c:6edacb92:47ce3340
RAID Level : 0
Members : 2
Slots : [_U]
Failed disk : 0
This Slot : 1
Array Size : 1953536000 (931.52 GiB 1000.21 GB)
Per Dev Size : 976768264 (465.76 GiB 500.11 GB)
Sector Offset : 0
Num Stripes : 3815500
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : 9934C0KJT
State : active failed
Id : 00000000
Usable Size : 976768264 (465.76 GiB 500.11 GB)[/CODE]
Resultados de examinar em / dev / sdb
# mdadm --examine /dev/sdb
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.0.00
Orig Family : 08b9238d
Family : 08b9238d
Generation : 00001c59
Attributes : All supported
UUID : 99fcd315:2ac78f08:08014b0a:33f4585f
Checksum : 1b2c84f0 correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
[Volume0]:
UUID : 245d2401:2ad11a3c:6edacb92:47ce3340
RAID Level : 0
Members : 2
Slots : [_U]
Failed disk : 0
This Slot : ?
Array Size : 1953536000 (931.52 GiB 1000.21 GB)
Per Dev Size : 976768264 (465.76 GiB 500.11 GB)
Sector Offset : 0
Num Stripes : 3815500
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk00 Serial : 9934C0KJT
State : active failed
Id : 00000000
Usable Size : 976766862 (465.76 GiB 500.10 GB)
Disk01 Serial : 9934C0KIT
State : active
Id : 00040000
Usable Size : 976766862 (465.76 GiB 500.10 GB)
Não parece haver um arquivo / dev / md / Volume0 no dev. Existem alguns arquivos md agora:
# ls -la /dev/md* | grep md
brw-rw---- 1 root disk 9, 126 May 24 22:05 /dev/md126
brw-rw---- 1 root disk 9, 127 May 25 22:27 /dev/md127
/dev/md:
lrwxrwxrwx 1 root root 8 May 25 22:27 imsm0 -> ../md127
Para / dev / md126
# mdadm --examine --scan /dev/md126
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
Para / dev / md17
# mdadm --examine --scan /dev/md127
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
ARRAY metadata=imsm UUID=99fcd315:2ac78f08:08014b0a:33f4585f
ARRAY /dev/md/Volume0 container=99fcd315:2ac78f08:08014b0a:33f4585f member=0 UUID=245d2401:2ad11a3c:6edacb92:47ce3340
# mdadm --assemble --scan
mdadm: ARRAY line /dev/md/imsm0 has no identity information.
mdadm: Container /dev/md126 has been assembled with 2 drives
# cat /proc/mdstat
Personalities : [raid10] [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0]
md126 : inactive sdb[1](S) sda[0](S)
5605 blocks super external:imsm
unused devices: <none>
# ls -la /dev/md*
brw-rw---- 1 root disk 9, 126 Jun 8 19:46 /dev/md126
# mount -o ro /dev/md126 /mnt
mount: /dev/md126: can't read superblock
# mdadm --stop /dev/md126
mdadm: stopped /dev/md126
# mdadm --assemble /dev/md0 --verbose --force /dev/sd[ab]
mdadm: looking for devices for /dev/md0
mdadm: /dev/sda is identified as a member of /dev/md0, slot -1.
mdadm: /dev/sdb is identified as a member of /dev/md0, slot -1.
mdadm: Marking array /dev/md0 as 'clean'
mdadm: added /dev/sdb to /dev/md0 as -1
mdadm: added /dev/sda to /dev/md0 as -1
mdadm: Container /dev/md0 has been assembled with 2 drives
# cat /proc/mdstat
Personalities : [raid10] [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0]
md0 : inactive sda[1](S) sdb[0](S)
5605 blocks super external:imsm
unused devices: <none>
# mdadm --readonly /dev/md0
# mount -o ro /dev/md0 /mnt
mount: /dev/md0: can't read superblock
Uma reinicialização reorganizou os dispositivos de sda & sdb para sdg & sdi desculpe. Eu não tive nenhuma sorte em tentar a opção -I até que parei tudo e o executei da seguinte forma. Eu também incluí a configuração do ambiente IMSM_NO_PLATFORM, a qual esqueci de colocar por padrão na reinicialização.
# export IMSM_NO_PLATFORM=1 # Allow mdadm to access/modify an IMSM array
# mdadm --stop /dev/md0
# mdadm -I /dev/sdg --verbose
mdadm: container /dev/md/imsm0 now has 1 device
mdadm: not enough devices to start the container
# mdadm -I /dev/sdi --verbose
mdadm: container /dev/md/imsm0 now has 2 devices
mdadm: not enough devices to start the container
# mdadm --query --detail /dev/md/imsm0
/dev/md/imsm0:
Version : imsm
Raid Level : container
Total Devices : 2
Working Devices : 2
UUID : 99fcd315:2ac78f08:08014b0a:33f4585f
Member Arrays :
Number Major Minor RaidDevice
0 8 96 - /dev/sdg
1 8 128 - /dev/sdi
# mdadm --query /dev/md/imsm0
/dev/md/imsm0: 0.00KiB (null) 0 devices, 2 spares. Use mdadm --detail for more detail.
# mdadm -I /dev/md/imsm0 --verbose
mdadm: not enough devices to start the container
# mdadm --assemble --scan
mdadm: array /dev/md/Volume0_0 now has 1 device
mdadm: No arrays found in config file or automatically
# ls -la /dev/md*
brw-rw---- 1 root disk 9, 126 Jun 12 17:02 /dev/md126
brw-rw---- 1 root disk 9, 127 Jun 12 17:00 /dev/md127
/dev/md:
total 0
drwxr-xr-x 2 root root 60 Jun 12 17:00 .
drwxr-xr-x 18 root root 5000 Jun 12 17:02 ..
lrwxrwxrwx 1 root root 8 Jun 12 17:00 imsm0 -> ../md127
# mdadm --query --detail /dev/md126
/dev/md126:
Container : /dev/md/imsm0, member 0
Raid Level : raid0
Raid Devices : 2
Total Devices : 1
State : active, FAILED, Not Started
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Chunk Size : 128K
UUID : 245d2401:2ad11a3c:6edacb92:47ce3340
Number Major Minor RaidDevice State
0 0 0 0 removed
0 8 96 1 active sync /dev/sdg
Parece que eu acessei o contêiner imsm0 que tem um dispositivo ausente (removido) e um dispositivo ok / dev / sdg. Alguma idéia sobre como identificar o dispositivo ausente e adicioná-lo novamente?
Qualquer e toda entrada (construtiva) muito apreciada!