i have Seagate 12 TB NAS, running RAID 5. one of my Hard disk suddnly stop working and RAID 5 crashed. some how i got the hard disk working but not able to mount my data volume as the disk have bad sectors. not sure if you had raid 5 setup or raid 0? i have tried lot of windows softwares but no luck.
UFS Explorer Professional Recovery does read my NAS version and everything but not able to recover data.
i guess windows/recovery software providers dont have Fuseext2 drivers. Paragon ExtFS for Windows doesnt support 3TB drives, so not able to mount with that either.
now i am trying Ubuntu and i get following results, can anyone tell me if i am doing anything wrong? i am trying to follow steps from the link below.
any help will be greatly appreciated. i have posted my results below.
RAID 5 autodetected by ubuntu on startup >>>
deepak@Vostro-220:~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md7 : active raid1 sdb9[2] sda9[1]
999412 blocks super 1.2 [4/2] [U_U_]
md5 : active raid1 sdc7[3] sdb7[2] sda7[1]
11252 blocks super 1.2 [4/3] [U_UU]
md6 : active raid1 sdc8[3] sdb8[2] sda8[1]
290804 blocks super 1.2 [4/3] [U_UU]
md4 : active raid1 sdc6[3] sdb6[2] sda6[1]
10228 blocks super 1.2 [4/3] [U_UU]
md2 : active raid1 sdc4[3] sdb4[2] sda4[1]
10228 blocks super 1.2 [4/3] [U_UU]
md127 : active (auto-read-only) raid5 sdc10[4] sdb10[2] sda10[1]
8778037248 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [_UUU]
bitmap: 0/22 pages [0KB], 65536KB chunk
md1 : active raid1 sdc3[3] sdb3[2] sda3[1]
975860 blocks super 1.2 [4/3] [UU_U]
md3 : active raid1 sdc5[3] sdb5[2] sda5[1]
976884 blocks super 1.2 [4/3] [U_UU]
md0 : active raid1 sdc2[3] sdb2[2] sda2[1]
975860 blocks super 1.2 [4/3] [U_UU]
unused devices: <none>
-------------------------------------------------------
Raid 5 is detected, number of disks detected, size of Raid 5 detected
-------------------------------------------------------
deepak@Vostro-220:~$ sudo mdadm --examine /dev/sd[abc]10
[sudo] password for deepak:
/dev/sda10:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 1e0939de:25e70b9c:e3c0ac75:3211be62
Name : BA-375726:8
Creation Time : Mon Jan 11 20:47:01 2016
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 5852025911 (2790.46 GiB 2996.24 GB)
Array Size : 8778037248 (8371.39 GiB 8988.71 GB)
Used Dev Size : 5852024832 (2790.46 GiB 2996.24 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 5ef294ef:b3642158:9c28a392:6b2cfd8f
Internal Bitmap : 8 sectors from superblock
Update Time : Sat Jul 16 01:42:33 2016
Checksum : 32cb6063 - correct
Events : 7364
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : .AAA ('A' == active, '.' == missing)
/dev/sdb10:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 1e0939de:25e70b9c:e3c0ac75:3211be62
Name : BA-375726:8
Creation Time : Mon Jan 11 20:47:01 2016
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 5852025911 (2790.46 GiB 2996.24 GB)
Array Size : 8778037248 (8371.39 GiB 8988.71 GB)
Used Dev Size : 5852024832 (2790.46 GiB 2996.24 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : c93bcca6:993d0199:c95be3af:5a72572a
Internal Bitmap : 8 sectors from superblock
Update Time : Sat Jul 16 01:42:33 2016
Checksum : e27cfbd0 - correct
Events : 7364
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : .AAA ('A' == active, '.' == missing)
/dev/sdc10:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : 1e0939de:25e70b9c:e3c0ac75:3211be62
Name : BA-375726:8
Creation Time : Mon Jan 11 20:47:01 2016
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 5852025911 (2790.46 GiB 2996.24 GB)
Array Size : 8778037248 (8371.39 GiB 8988.71 GB)
Used Dev Size : 5852024832 (2790.46 GiB 2996.24 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : cdbc1452:fec51fe5:127a044d:99a5db5a
Internal Bitmap : 8 sectors from superblock
Update Time : Sat Jul 16 01:42:33 2016
Checksum : a78956c3 - correct
Events : 7364
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : .AAA ('A' == active, '.' == missing)
deepak@Vostro-220:~$ sudo mdadm --assemble --force -v /dev/md127 --uuid=1e0939de:25e70b9c:e3c0ac75:3211be62
mdadm: looking for devices for /dev/md127
mdadm: no recogniseable superblock on /dev/sdd6
mdadm: no recogniseable superblock on /dev/sdd5
mdadm: Cannot assemble mbr metadata on /dev/sdd3
mdadm: Cannot assemble mbr metadata on /dev/sdd2
mdadm: Cannot assemble mbr metadata on /dev/sdd1
mdadm: Cannot assemble mbr metadata on /dev/sdd
mdadm: /dev/sdc10 is busy - skipping
mdadm: /dev/sdc9 has wrong uuid.
mdadm: /dev/sdc8 has wrong uuid.
mdadm: /dev/sdc7 has wrong uuid.
mdadm: /dev/sdc6 has wrong uuid.
mdadm: /dev/sdc5 has wrong uuid.
mdadm: /dev/sdc4 has wrong uuid.
mdadm: /dev/sdc3 has wrong uuid.
mdadm: /dev/sdc2 has wrong uuid.
mdadm: no recogniseable superblock on /dev/sdc1
mdadm: Cannot assemble mbr metadata on /dev/sdc
mdadm: /dev/sdb10 is busy - skipping
mdadm: /dev/sdb9 has wrong uuid.
mdadm: /dev/sdb8 has wrong uuid.
mdadm: /dev/sdb7 has wrong uuid.
mdadm: /dev/sdb6 has wrong uuid.
mdadm: /dev/sdb5 has wrong uuid.
mdadm: /dev/sdb4 has wrong uuid.
mdadm: /dev/sdb3 has wrong uuid.
mdadm: /dev/sdb2 has wrong uuid.
mdadm: no recogniseable superblock on /dev/sdb1
mdadm: Cannot assemble mbr metadata on /dev/sdb
mdadm: no recogniseable superblock on /dev/md/7
mdadm: no recogniseable superblock on /dev/md/5
mdadm: no recogniseable superblock on /dev/md/6
mdadm: no recogniseable superblock on /dev/md/4
mdadm: no recogniseable superblock on /dev/md/2
mdadm: no recogniseable superblock on /dev/md/BA-375726:8
mdadm: no recogniseable superblock on /dev/md/1
mdadm: no recogniseable superblock on /dev/md/3
mdadm: no recogniseable superblock on /dev/md/0
mdadm: /dev/sda10 is busy - skipping
mdadm: /dev/sda9 has wrong uuid.
mdadm: /dev/sda8 has wrong uuid.
mdadm: /dev/sda7 has wrong uuid.
mdadm: /dev/sda6 has wrong uuid.
mdadm: /dev/sda5 has wrong uuid.
mdadm: /dev/sda4 has wrong uuid.
mdadm: /dev/sda3 has wrong uuid.
mdadm: /dev/sda2 has wrong uuid.
mdadm: no recogniseable superblock on /dev/sda1
mdadm: Cannot assemble mbr metadata on /dev/sda
mdadm: no recogniseable superblock on /dev/ram15
mdadm: no recogniseable superblock on /dev/ram14
mdadm: no recogniseable superblock on /dev/ram13
mdadm: no recogniseable superblock on /dev/ram12
mdadm: no recogniseable superblock on /dev/ram11
mdadm: no recogniseable superblock on /dev/ram10
mdadm: no recogniseable superblock on /dev/ram9
mdadm: no recogniseable superblock on /dev/ram8
mdadm: no recogniseable superblock on /dev/ram7
mdadm: no recogniseable superblock on /dev/ram6
mdadm: no recogniseable superblock on /dev/ram5
mdadm: no recogniseable superblock on /dev/ram4
mdadm: no recogniseable superblock on /dev/ram3
mdadm: no recogniseable superblock on /dev/ram2
mdadm: no recogniseable superblock on /dev/ram1
mdadm: no recogniseable superblock on /dev/ram0
deepak@Vostro-220:~$ sudo modprobe dm-mod
deepak@Vostro-220:~$ sudo vgchange -ay
0 logical volume(s) in volume group "vg8" now active
deepak@Vostro-220:~$ sudo mdadm -S /dev/md127
mdadm: stopped /dev/md127
deepak@Vostro-220:~$ sudo mdadm --assemble --force -v /dev/md127 --uuid=1e0939de:25e70b9c:e3c0ac75:3211be62
mdadm: looking for devices for /dev/md127
mdadm: no recogniseable superblock on /dev/sdd6
mdadm: no recogniseable superblock on /dev/sdd5
mdadm: Cannot assemble mbr metadata on /dev/sdd3
mdadm: Cannot assemble mbr metadata on /dev/sdd2
mdadm: Cannot assemble mbr metadata on /dev/sdd1
mdadm: Cannot assemble mbr metadata on /dev/sdd
mdadm: /dev/sdc9 has wrong uuid.
mdadm: /dev/sdc8 has wrong uuid.
mdadm: /dev/sdc7 has wrong uuid.
mdadm: /dev/sdc6 has wrong uuid.
mdadm: /dev/sdc5 has wrong uuid.
mdadm: /dev/sdc4 has wrong uuid.
mdadm: /dev/sdc3 has wrong uuid.
mdadm: /dev/sdc2 has wrong uuid.
mdadm: no RAID superblock on /dev/sdc1
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sdb9 has wrong uuid.
mdadm: /dev/sdb8 has wrong uuid.
mdadm: /dev/sdb7 has wrong uuid.
mdadm: /dev/sdb6 has wrong uuid.
mdadm: /dev/sdb5 has wrong uuid.
mdadm: /dev/sdb4 has wrong uuid.
mdadm: /dev/sdb3 has wrong uuid.
mdadm: /dev/sdb2 has wrong uuid.
mdadm: no RAID superblock on /dev/sdb1
mdadm: no RAID superblock on /dev/sdb
mdadm: no RAID superblock on /dev/md/7
mdadm: no RAID superblock on /dev/md/5
mdadm: no RAID superblock on /dev/md/6
mdadm: no RAID superblock on /dev/md/4
mdadm: no RAID superblock on /dev/md/2
mdadm: no RAID superblock on /dev/md/1
mdadm: no RAID superblock on /dev/md/3
mdadm: no RAID superblock on /dev/md/0
mdadm: /dev/sda9 has wrong uuid.
mdadm: /dev/sda8 has wrong uuid.
mdadm: /dev/sda7 has wrong uuid.
mdadm: /dev/sda6 has wrong uuid.
mdadm: /dev/sda5 has wrong uuid.
mdadm: /dev/sda4 has wrong uuid.
mdadm: /dev/sda3 has wrong uuid.
mdadm: /dev/sda2 has wrong uuid.
mdadm: no RAID superblock on /dev/sda1
mdadm: no RAID superblock on /dev/sda
mdadm: no RAID superblock on /dev/ram15
mdadm: no RAID superblock on /dev/ram14
mdadm: no RAID superblock on /dev/ram13
mdadm: no RAID superblock on /dev/ram12
mdadm: no RAID superblock on /dev/ram11
mdadm: no RAID superblock on /dev/ram10
mdadm: no RAID superblock on /dev/ram9
mdadm: no RAID superblock on /dev/ram8
mdadm: no RAID superblock on /dev/ram7
mdadm: no RAID superblock on /dev/ram6
mdadm: no RAID superblock on /dev/ram5
mdadm: no RAID superblock on /dev/ram4
mdadm: no RAID superblock on /dev/ram3
mdadm: no RAID superblock on /dev/ram2
mdadm: no RAID superblock on /dev/ram1
mdadm: no RAID superblock on /dev/ram0
mdadm: /dev/sdc10 is identified as a member of /dev/md127, slot 3.
mdadm: /dev/sdb10 is identified as a member of /dev/md127, slot 2.
mdadm: /dev/sda10 is identified as a member of /dev/md127, slot 1.
mdadm: no uptodate device for slot 0 of /dev/md127
mdadm: added /dev/sdb10 to /dev/md127 as 2
mdadm: added /dev/sdc10 to /dev/md127 as 3
mdadm: added /dev/sda10 to /dev/md127 as 1
mdadm: /dev/md127 has been started with 3 drives (out of 4).
deepak@Vostro-220:~$ sudo modprobe dm-mod
deepak@Vostro-220:~$ sudo vgchange -ay
0 logical volume(s) in volume group "vg8" now active
deepak@Vostro-220:~$ sudo lvscan
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