On 19/05/2021 15:48, Leslie Rhorer wrote:
Then I would try recreating the RAID based upon the earlier Examine
report:
mdadm -C -f -n 3 -l 5 -e 1.2 -c 512 -p ls /dev/md99 /dev/loop2
/dev/loop0 /dev/loop1
You may notice some of the command switches are defaults. Remember
what I said about a belt and suspenders? Personally, in such a case I
would not rely on defaults.
Because defaults change?
Now try running a check on the assembled array:
fsck /dev/md99
If that fails, shutdown the array with
mdadm -S /dev/md99
and then try creating the array with a different drive order.
There are only two other possible permutations of three disks. If none
of those work, you have some more serious problems.
And here you are oversimplifying the problem immensely. If those three
drives aren't the originals, then the chances are HIGH that a simple
re-assembly/creation is going to fail your simplistic scenario.
That said, I couldn't agree more about getting new drive(s) to take a
backup before attempting recovery ...
Cheers,
Wol
