On Mon, 2023-10-02 at 19:37 -0400, Phillip Susi wrote:
>
> "Brian J. Murrell" <brian@xxxxxxxxxxxxxxx> writes:
>
> > Just to take advantage of MD's online/background sync to get the
> > data
> > from md0 array to the md1 array.
>
> If you weren't using LVM, then that would be a good idea, but LVM can
> do
> that too.
So just to confirm, given:
sdc 8:32 0 3.7T 0 disk
└─md0 9:0 0 3.7T 0 raid1
├─backups-backups 253:13 0 2.5T 0 lvm /.snapshots
├─backups-borg 253:14 0 300G 0 lvm
└─backups-vdo--test 253:15 0 700G 0 lvm
└─vdo-backups 253:73 0 1.8T 0 vdo
sdd 8:48 0 3.7T 0 disk
└─md1 9:1 0 3.7T 0 raid1
└─luks-backup 253:40 0 3.7T 0 crypt
I want to do:
# pvcreate /dev/mapper/luks-backup
# vgextend backups /dev/mapper/luks-backup
# pvmove /dev/md0 /dev/luks-backup
# vgreduce backups /dev/md0
# mdadm --stop /dev/md0
# mdadm --zero-superblocks /dev/sdc
# mdadm /dev/md1 --add /dev/sdc
Correct?
Cheers,
b.
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