Hi Michael,
yes, you can use ceph-bluestore-tool to do that. E.g.
bin/ceph-bluestore-tool --path dev/osd0 --devs-source dev/osd0/block.wal
--dev-target dev/osd0/block.db --command bluefs-bdev-migrate
inferring bluefs devices from bluestore path
device removed:0 dev/osd0/block.wal
Additionally you might probably need to zap wal device with ceph-volume
after the migration to avoid its attachment to OSD on node restart. Not
completely sure about that though...
Thanks,
Igor
On 9/22/2020 10:09 PM, Michael Fladischer wrote:
Hi,
Is it possible to remove an existing WAL device from an OSD? I saw
that ceph-bluestore-tool has a command bluefs-bdev-migrate, but it's
not clear to me if this can only move a WAL device or if it can be
used to remove it ...
Regards,
Michael
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