They have talked about working on allowing people to be able to do this, but for now there is nothing you can do to remove the block.db or block.wal from a bluestore OSD. However, there is an option to completely replace the SSD, not remove it. There are a few ML threads discussing how to utilize dd to copy all of the contents of the current SSD to a new device and configure your OSDs to use the new SSD.
On Tue, Aug 21, 2018 at 3:44 PM Alfredo Daniel Rezinovsky <alfredo.rezinovsky@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
My ceph-$ID mount point looks like this
-rw-r--r-- 1 root root 438 Aug 15 11:05 activate.monmap
-rw-r--r-- 1 ceph ceph 3 Aug 15 11:05 active
lrwxrwxrwx 1 ceph ceph 58 Aug 15 11:05 block ->
/dev/disk/by-partuuid/bd9f8501-2958-4294-8982-1e5cae80deef
lrwxrwxrwx 1 ceph ceph 58 Aug 15 11:05 block.db ->
/dev/disk/by-partuuid/ee7d30db-4899-49e7-a86d-018e4f97608b
-rw-r--r-- 1 ceph ceph 37 Aug 15 11:05 block.db_uuid
-rw-r--r-- 1 ceph ceph 37 Aug 15 11:05 block_uuid
-rw-r--r-- 1 ceph ceph 2 Aug 15 11:05 bluefs
-rw-r--r-- 1 ceph ceph 37 Aug 15 11:05 ceph_fsid
-rw-r--r-- 1 ceph ceph 37 Aug 15 11:05 fsid
-rw------- 1 ceph ceph 56 Aug 15 11:05 keyring
-rw-r--r-- 1 ceph ceph 8 Aug 15 11:05 kv_backend
-rw-r--r-- 1 ceph ceph 21 Aug 15 11:05 magic
-rw-r--r-- 1 ceph ceph 4 Aug 15 11:05 mkfs_done
-rw-r--r-- 1 ceph ceph 6 Aug 15 11:05 ready
-rw-r--r-- 1 ceph ceph 0 Aug 16 15:18 systemd
-rw-r--r-- 1 ceph ceph 10 Aug 15 11:05 type
-rw-r--r-- 1 ceph ceph 2 Aug 15 11:05 whoami
Is a bluestore with block.db in a SSD. I'm not trusting the SSD and I
want to remove the block.db without destroying and creating the OSD.
There's a way to do this.
--
Alfredo Daniel Rezinovsky
Director de Tecnologías de Información y Comunicaciones
Facultad de Ingeniería - Universidad Nacional de Cuyo
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