Re: Unable to read data from RAID partition
houghi a écrit :
>
> root@penne : cat /proc/mdstat
> Personalities : [raid1]
> md124 : active raid1 sdc3[0]
> 1455183616 blocks super 1.0 [1/1] [U]
>
> unused devices: <none>
>
>
> The raid1 device is /dev/md124
>
> root@penne : mdadm --detail /dev/md124
> /dev/md124:
> Version : 1.0
> Creation Time : Sat Oct 10 01:30:57 2015
> Raid Level : raid1
> Array Size : 1455183616 (1387.77 GiB 1490.11 GB)
> Used Dev Size : 1455183616 (1387.77 GiB 1490.11 GB)
> Raid Devices : 1
> Total Devices : 1
> Persistence : Superblock is persistent
>
> Update Time : Sun Oct 25 13:10:43 2015
> State : clean
> Active Devices : 1
> Working Devices : 1
> Failed Devices : 0
> Spare Devices : 0
>
> Name : 4
> UUID : d358edc1:b9272da7:e071f2f0:0462cd1f
> Events : 10
>
> Number Major Minor RaidDevice State
> 0 8 35 0 active sync /dev/sdc3
>
>
> When I try to mount :
> root@penne : mount /dev/sdc1 /mnt/1/
> mount: unknown filesystem type 'linux_raid_member'
Never try to mount directly a partition which is a member of a RAID
array unless you know exactly what you are doing.
> root@penne : mount /dev/md124 /mnt/3
> mount: unknown filesystem type 'drbd'
The keyword seems to be "drbd". IIUC the RAID array does not contain a
filesystem but is used by DRBD (distributed replicated block device),
which I know nothing about. Like layers such as RAID or LVM, I guess
you have to "activate" the block device(s) with whatever admin command
is designed for the task (drbdadm, drbdsetup, drdbmeta ?). Then, if it
contains a filesystem, you can mount it.
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