Eu tenho um dispositivo WD My Book Live Duo que usei como uma unidade de rede com uma configuração RAID1. O dispositivo, que estava funcionando perfeitamente por quase dois anos, de repente parou de funcionar, isto é; não estava mais se comunicando pela rede. Portanto, estou tentando recuperar meus dados. Para fazer isso eu removi os 2 discos rígidos internos (2 TB cada) e os conectei a um PC rodando o sistema Ubuntu, o problema é que eu sei muito pouco sobre sistemas RAID1 e não tenho experiência em fazer trabalho de administrador com tais partições / arrays . Eu tenho tentado recuperar os dados usando informações que encontrei na Internet, mas ainda não consegui acessar meus dados. Eu estou esperando que alguém possa me dar uma mão com isso.
sudo fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
Device Boot Start End Blocks Id System /dev/sda1 1 3907029167 1953514583+ ee GPT Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
Device Boot Start End Blocks Id System /dev/sdb1 1 3907029167 1953514583+ ee GPT Partition 1 does not start on physical sector boundary.
Disk /dev/sdc: 8012 MB, 8012390400 bytes 255 heads, 63 sectors/track, 974 cylinders, total 15649200 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: 0x0007cb70
Device Boot Start End Blocks Id System /dev/sdc1 * 2048 9420799 4709376 83 Linux /dev/sdc2 9422846 15648767 3112961 5 Extended /dev/sdc5 9422848 15648767 3112960 82 Linux swap / Solaris
Disk /dev/md3: 1995.8 GB, 1995774484480 bytes 2 heads, 4 sectors/track, 487249630 cylinders, total 3897997040 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
Disk /dev/md3 doesn't contain a valid partition table
cat / proc / mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md3 : active raid1 sda4[0]
1948998520 blocks super 1.0 [2/1] [U_] md2 : inactive sda3[0](S)
500724 blocks super 1.0
sudo mdadm --examinar / dev / sda4
/dev/sda4:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : 6328fe8f:fe1171d8:081e7373:f0f4c10c
Name : MyBookLiveDuo:3 Creation Time : Wed Jul 25 23:18:29 2012
Raid Level : raid1 Raid Devices : 2
Avail Dev Size : 3897997040 (1858.71 GiB 1995.77 GB)
Array Size : 1948998520 (1858.71 GiB 1995.77 GB) Super Offset : 3897997296 sectors
State : clean
Device UUID : 4fc654bb:b038b5f5:95b07dfb:cb72a9fd
Update Time : Fri Oct 17 14:51:18 2014
Checksum : e6c639fd - correct
Events : 2776221
Device Role : Active device 0 Array State : A. ('A' == active, '.' == missing)
monte / dev / md3 / mnt / raid
mount: wrong fs type, bad option, bad superblock on /dev/md3,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
sudo mdadm --examine --scan
ARRAY /dev/md/2 metadata=1.0 UUID=ff212100:102164c7:d017c1b8:c595e2ba name=MyBookLiveDuo:2
spares=1
ARRAY /dev/md/3 metadata=1.0 UUID=6328fe8f:fe1171d8:081e7373:f0f4c10c name=MyBookLiveDuo:3
EDITAR:
sudo gdisk -l / dev / sda
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 3907029168 sectors, 1.8 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 79317853-5A49-4E58-83F9-CB068223B1D5
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 3907029134
Partitions will be aligned on 2048-sector boundaries
Total free space is 30829 sectors (15.1 MiB)
Number Start (sector) End (sector) Size Code Name
1 1032192 5031935 1.9 GiB FD00 primary
2 5031936 9031679 1.9 GiB FD00 primary
3 30720 1032191 489.0 MiB FD00 primary
4 9031680 3907028991 1.8 TiB FD00 primary
sudo gdisk -l / dev / sdb
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 3907029168 sectors, 1.8 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 5F5A7F2D-1D3C-434A-9CCD-FB8AED835564
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 3907029134
Partitions will be aligned on 2048-sector boundaries
Total free space is 3907029101 sectors (1.8 TiB)
Number Start (sector) End (sector) Size Code Name
EDIT2:
Esta é a saída que recebo no dmesg ao tentar montar / dev / md3
EXT4-fs (md3): bad block size 65536
EDIT3:
sudo parted -l
Model: ATA WDC WD20EURS-63S (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
3 15,7MB 528MB 513MB primary raid
1 528MB 2576MB 2048MB ext3 primary raid
2 2576MB 4624MB 2048MB ext3 primary raid
4 4624MB 2000GB 1996GB ext4 primary raid
Model: ATA WDC WD20EURS-63S (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
Model: ATA CFast D150Q (scsi)
Disk /dev/sdc: 8012MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 4823MB 4822MB primary ext4 boot
2 4824MB 8012MB 3188MB extended
5 4824MB 8012MB 3188MB logical linux-swap(v1)
Model: Linux Software RAID Array (md)
Disk /dev/md3: 1996GB
Sector size (logical/physical): 512B/4096B
Partition Table: loop
Number Start End Size File system Flags
1 0,00B 1996GB 1996GB ext4
Qualquer ajuda será apreciada.
Obrigado antecipadamente.
Andres
Consegui montar o array do raid 1 e recuperar meus dados. Isso é o que eu usei:
sudo fuseext2 -o ro -o sync_read -o allow_other /dev/sda4 /mnt/raid
Para mais informações, consulte este excelente artigo no blog:
[Recuperando dados de um WD Mybook Live 2TB / 3TB (ou similar)] [1] link