Am 22.09.2016 um 19:19 schrieb Andreas Klauer:
On Thu, Sep 22, 2016 at 04:11:28PM +0200, Axel Spallek wrote:
I tried to get a disk out of a RAID5 with 8 hdds (4TB) to get a Hotspare
to change to RAID6 afterwards.
I'm a bit confused here.
You started out with 8 disk RAID-5? And final result is to be what?
RAID-6 with 8 disks?
Correct.
Therefore I issued the following commands:
mdadm --grow -n7 /dev/md1 <-- just to get the size for the next command.
mdadm --grow /dev/md1 --array-size 23441292288
mdadm --grow -n7 /dev/md1 --backup-file /var/backups/mdadm.backup
I'm not sure, but you might not have needed any of these intermediate steps.
Hmmm. Had RAID5 with 8 disks. To convert to RAID6 you need a Hotspare,
but all my drive-cage is full.
But now you started it you might have to finish them.
That said there is a reshape revert (which is not yet in the manpage?)
which might help if the regular reshape just won't resume.
Yes. That info would help.
root@s10:~# mdadm -A --scan --verbose
mdadm: looking for devices for further assembly
mdadm: /dev/sdg1 is busy - skipping
It says busy because already assembled (or in use by something else).
So you have to stop first before assembeling again.
I didn't see anything out of place in your --examine.
It seems to be in sync, event count identical, ....
Good luck
Andreas Klauer
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