What to do to restore raid 5 ?

anneranch

Active Member
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1,109
Rather typical midday Texas storm caused power failure - couple hours - no big deal.
Now I cannot get into my RAID5 - Ubuntu OS keeps scanning for it .
I did check it using mdadm and found some inconsistencies.

Raid Devices : 3
Total Devices : 2

no failed devices, but device 0 removed


Should I just sit tight and see if device 0 gets reinstalled ( about 30 GB per HDD) or just manually add
another drive ?


[email protected]:~$ sudo mdadm --detail /dev/md127


[sudo] password for qe:


/dev/md127:


Version : 1.2


Creation Time : Wed Jun 9 23:44:40 2021


Raid Level : raid5


Array Size : 51165184 (48.79 GiB 52.39 GB)


Used Dev Size : 25582592 (24.40 GiB 26.20 GB)


Raid Devices : 3
Total Devices : 2



Persistence : Superblock is persistent

Update Time : Tue Jul 13 15:29:15 2021

State : clean, degraded

Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0


Layout : left-symmetric


Chunk Size : 512K

Consistency Policy : resync
Name : qt-desktop:0
UUID : f82fd801:3c936a89:9ef1a37f:f6cb9c9d

Events : 5973

Number Major Minor RaidDevice State


- 0 0 0 removed
1 8 37 1 active sync /dev/sdc5
3 8 25 2 active sync /dev/sdb9

[email protected]:~$
 


anneranch

Active Member
Credits
1,109
I have added another dev using mdadm- orignal remowed by power failiure. That "cleared" the array, but now Ubuntu is saying "can't do - another operation is in progess " when I try to open the main folder in file manager.
 
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