I had a Buffalo DUO crap out on me that was setup as RAID 0. I dont belive it was the drives but rather the controller in the DUO unit. I bought another external HDD enclosure and was able to fireup the two older DUO drives in it and I think I resembled the RAID successfully:
Code:
sudo mdadm --examine /dev/sdd6
/dev/sdd6:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 8577ffd0:8892c451:2dd41f56:0e001d01
Name : UNINSPECT-EME0C:2
Creation Time : Sat Jan 18 08:17:34 2014
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1923497952 (917.20 GiB 984.83 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
Unused Space : before=1968 sectors, after=0 sectors
State : clean
Device UUID : 874c45ae:5b772a48:396f6e41:79f42c62
Update Time : Sat Jan 18 08:17:34 2014
Checksum : eeaa9c97 - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
daman$ sudo mdadm --examine /dev/sde6
/dev/sde6:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 8577ffd0:8892c451:2dd41f56:0e001d01
Name : UNINSPECT-EME0C:2
Creation Time : Sat Jan 18 08:17:34 2014
Raid Level : raid0
Raid Devices : 2
Avail Dev Size : 1923497952 (917.20 GiB 984.83 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
Unused Space : before=1968 sectors, after=0 sectors
State : clean
Device UUID : bcde0889:4934f6b6:e1af9882:9b7ad11e
Update Time : Sat Jan 18 08:17:34 2014
Checksum : 3608b286 - correct
Events : 0
Chunk Size : 512K
Device Role : Active device 1
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)
daman$ sudo mdadm --create /dev/md123 --assume-clean --level=0 --verbose --chunk=64 --raid-devices=2 --metadata=0.90 /dev/sdd6 /dev/sde6
mdadm: /dev/sdd6 appears to be part of a raid array:
level=raid0 devices=2 ctime=Sat Jan 18 08:17:34 2014
mdadm: /dev/sde6 appears to be part of a raid array:
level=raid0 devices=2 ctime=Sat Jan 18 08:17:34 2014
Continue creating array? y
mdadm: array /dev/md123 started.
Disk /dev/sdd: 931.5 GiB, 1000204886016 bytes, 1953525168 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
Disklabel type: gpt
Disk identifier: 5BD4E39E-AC17-4070-9569-94B2D6F52367
Device Start End Sectors Size Type
/dev/sdd1 2048 2002943 2000896 977M Microsoft basic data
/dev/sdd2 2002944 12003327 10000384 4.8G Microsoft basic data
/dev/sdd3 12003328 12005375 2048 1M Microsoft basic data
/dev/sdd4 12005376 12007423 2048 1M Microsoft basic data
/dev/sdd5 12007424 14008319 2000896 977M Microsoft basic data
/dev/sdd6 14008320 1937508319 1923500000 917.2G Microsoft basic data
Disk /dev/sde: 931.5 GiB, 1000204886016 bytes, 1953525168 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
Disklabel type: gpt
Disk identifier: 82EA65C5-432A-4966-8110-EBF425364748
Device Start End Sectors Size Type
/dev/sde1 2048 2002943 2000896 977M Microsoft basic data
/dev/sde2 2002944 12003327 10000384 4.8G Microsoft basic data
/dev/sde3 12003328 12005375 2048 1M Microsoft basic data
/dev/sde4 12005376 12007423 2048 1M Microsoft basic data
/dev/sde5 12007424 14008319 2000896 977M Microsoft basic data
/dev/sde6 14008320 1937508319 1923500000 917.2G Microsoft basic data
Disk /dev/md123: 1.8 TiB, 1969663770624 bytes, 3846999552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
But when I try and mount the array using:
Code:
$ sudo mount /dev/md123 /mnt/caca/
NTFS signature is missing.
Failed to mount '/dev/md123': Invalid argument
The device '/dev/md123' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
sudo mount -t ntfs /dev/md123 /mnt/caca/
NTFS signature is missing.
Failed to mount '/dev/md123': Invalid argument
The device '/dev/md123' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
cat /proc/mdstat
Personalities : [raid0]
md123 : active raid0 sde6[1] sdd6[0]
1923499776 blocks 64k chunks
md124 : inactive sdc5[0](S) sdb5[1](S)
2000872 blocks super 1.2
md125 : inactive sdc6[0](S) sdb6[1](S)
1923497952 blocks super 1.2
md126 : inactive sdc2[0](S) sdb2[1](S)
9998336 blocks super 1.2
md127 : inactive sdc1[0](S) sdb1[1](S)
2000768 blocks
unused devices: <none>
It simply wont mount. What am I doing wrong?
------ Post updated at 10:41 PM ------
Code:
[27866.641697] sdd: sdd1 sdd2 sdd3 sdd4 sdd5 sdd6
[27866.641998] sde: sde1 sde2 sde3 sde4 sde5 sde6
[27866.642985] sd 4:0:0:1: [sde] Attached SCSI disk
[27866.643433] sd 4:0:0:0: [sdd] Attached SCSI disk
[28455.514768] md: array md125 already has disks!
[28479.074982] md: array md125 already has disks!
[30110.845958] md123: detected capacity change from 0 to 1969663770624
[30190.553774] XFS (md123): Invalid superblock magic number
[30430.769434] EXT4-fs (md123): VFS: Can't find ext4 filesystem
------ Post updated at 10:41 PM ------
Code:
[27866.641697] sdd: sdd1 sdd2 sdd3 sdd4 sdd5 sdd6
[27866.641998] sde: sde1 sde2 sde3 sde4 sde5 sde6
[27866.642985] sd 4:0:0:1: [sde] Attached SCSI disk
[27866.643433] sd 4:0:0:0: [sdd] Attached SCSI disk
[28455.514768] md: array md125 already has disks!
[28479.074982] md: array md125 already has disks!
[30110.845958] md123: detected capacity change from 0 to 1969663770624
[30190.553774] XFS (md123): Invalid superblock magic number
[30430.769434] EXT4-fs (md123): VFS: Can't find ext4 filesystem
Moderator's Comments:
Changed PHP BB code tags to CODE tags.
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