Hi,
at the moment there's only the manual way to deploy single OSDs, not
with cephadm. There have been a couple of threads on this list, I
don't have a link though.
You'll have to run something like
ceph-volume lvm create --data /dev/sdX --block.db {VG/LV}
Note that for block.db you'll need to provide the volume-goup/logical
volume, not the device path.
Regards,
Eugen
Zitat von 胡 玮文 <huww98@xxxxxxxxxxx>:
Hi all,
I’m new to ceph. I recently deployed a ceph cluster with cephadm.
Now I want to add a single new OSD daemon with a db device on SSD.
But I can’t find any documentation about this.
I have tried:
1. Using web dashboard. This requires at least one filter to
proceed (type, vendor, model or size). But I just want to select the
block device manually.
2. Using ‘ceph orch apply osd -i spec.yml’. This is also filter based.
3. Using ‘ceph orch daemon add osd host:device’. Seems I cannot
specify my SSD db device in this way.
4. On the target host, run ‘cephadm shell’ then ceph-volume
prepare and activate. But ceph-volume seems can’t create systemd
service outside the container like ‘ceph orch’ does.
5. On the target host, run ‘cephadm ceph-volume’, but it requires
a json config file, I can’t figure out what is that.
Any help is appreciated. Thanks.
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