So I understand RAID sets as below right now,
RAID set 1-> 1,2
RAID set 2-> 3,5
RAID set 3-> 8,10
RAID set 4 -> 11, ?
So you say 4, 7 and 9 were not part of any of the above RAID sets, only 13 was part of them. This can't be possible because drives can only go to LEFTOVER state when they were part of some vdisk and for some reason they marked as LEFTOVER by controllers.
Do you remember how was the RAID sets before drives went to LEFTOVER state?
4 drives metadata clear always risky for data recovery.
You can be extremely lucky if none of 2 drives out of 4,7,9 and 13 part of same RAID set. Then we have good chance to recover this vdisk.
Without logs it's difficult but if you can tell me condition of RAID sets when everything was fine, then which drive join which RAID set after you cleared metadata that may help us. For example, lets say RAID 2 set earlier drive 3 and 4 was in pair but later drive at location went to LEFTOVER state. Then drive at location 5 you have configured as spare and it joins drive 3 as partner. Sameway other sub-vdisks also.
Hope this helps!
Regards
Subhajit
I am an HPE employee
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