For re-add to work the array must have a bitmap, so that mdadm knows
what parts of the disk need updating.
mine looks like this:
md13 : active raid6 sdi3[9] sdf3[12] sdg3[6] sdd3[1] sdc3[5] sdb3[7] sde3[10]
3612623360 blocks super 1.2 level 6, 512k chunk, algorithm 2
[7/7] [UUUUUUU]
bitmap: 0/6 pages [0KB], 65536KB chunk
On Thu, May 21, 2020 at 1:10 PM David T-G <davidtg-robot@xxxxxxxxxxxxxxx> wrote:
>
> Hi, all --
>
> ...and then davidtg-robot@xxxxxxxxxxxxxxx said...
> %
> % ...and then antlists said...
> % %
> % % So *you* should choose re-add. Let mdadm choose add if it can't do a re-add.
> %
> % Thanks. Sooooo ... Given this
> ...
> % does this
> %
> % mdadm --manage /dev/md0 --re-add /dev/sdd1
> %
> % look like the right next step?
>
> Perhaps it did, but it wasn't to be:
>
> diskfarm:root:10:~> mdadm --manage /dev/md0 --re-add /dev/sdd1
> mdadm: --re-add for /dev/sdd1 to /dev/md0 is not possible
>
> So we'll try "add"
>
> diskfarm:root:10:~> mdadm --manage /dev/md0 --add /dev/sdd1
> mdadm: added /dev/sdd1
>
> and now we wait :-)
>
>
> Thanks again to all
>
> :-D
> --
> David T-G
> See http://justpickone.org/davidtg/email/
> See http://justpickone.org/davidtg/tofu.txt
>
