Hi!
i just checked my hdd´s and was shocked - my backup RAID disappeared and i dont know why.
Mostly i check only S.M.A.R.T and there was always everything good, even now.
My "big" HDD (7,22TiB) is the HDD that i am using and it work to,
Rsync do every Sunday a backup to "dev/disk/by-id/md-name-naspc:backup". Never got any Error Msg.
In the past it worked well and i had access to the RAID. Know my drives are "disappeared"?!
The HDD´s still there so think the Cable´s are working.
Can someone explain me what happend?
Thanks Pro´s
maybe it help´s you to see this output
Code
€: root@naspc:~# cat /proc/mdstat
Personalities : [raid0] [linear] [multipath] [raid1] [raid6] [raid5] [raid4] [ra id10]
md0 : inactive sdd[2] sdb[0] sdc[1]
7813653504 blocks super 1.2
unused devices: <none>
root@naspc:~# mdadm --detail --scan -v /dev/md7
mdadm: cannot open /dev/md7: No such file or directory
root@naspc:~# mdadm --detail --scan -v /dev/md0
ARRAY /dev/md0 level=raid0 num-devices=3 metadata=1.2 name=naspc:backup UUID=4e7 b1b8e:2b22066e:5bbd6cf9:8d770af2
devices=/dev/sdb,/dev/sdc,/dev/sdd
root@naspc:~# mdadm --run --readonly /dev/md0
root@naspc:~# mdadm -S /dev/md0
mdadm: stopped /dev/md0
root@naspc:~# ^C
root@naspc:~# mdadm --assemble /dev/md0 --uuid=4e7b1b8e:2b22066e:5bbd6cf9:8d770af2 mdadm: failed to RUN_ARRAY /dev/md0: Unknown error 524
root@naspc:~# mdadm --detail /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Thu Jan 2 17:33:16 2020
Raid Level : raid0
Raid Devices : 3
Total Devices : 3
Persistence : Superblock is persistent
Update Time : Thu Jan 2 17:33:16 2020
State : active, Not Started
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Chunk Size : 512K
Name : naspc:backup (local to host naspc)
UUID : 4e7b1b8e:2b22066e:5bbd6cf9:8d770af2
Events : 0
Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
1 8 32 1 active sync /dev/sdc
2 8 48 2 active sync /dev/sdd
root@naspc:~# xfs_repair -n /dev/md0
Phase 1 - find and verify superblock...
superblock read failed, offset 0, size 524288, ag 0, rval 0
fatal error -- Success
root@naspc:~# mdadm --run --readonly /dev/md0
root@naspc:~# xfs_repair -n /dev/md0
Phase 1 - find and verify superblock...
superblock read failed, offset 0, size 524288, ag 0, rval 0
fatal error -- Success