Dear Ceph Experts,
I'm trying to set up some new OSD storage nodes, now with
bluestore (our existing nodes still use filestore). I'm
a bit unclear on how to specify WAL/DB devices: Can
several OSDs share one WAL/DB partition? So, can I do
ceph-deploy osd create --bluestore --osd-db=/dev/nvme0n1p2
--data=/dev/sdb HOSTNAME
ceph-deploy osd create --bluestore --osd-db=/dev/nvme0n1p2
--data=/dev/sdc HOSTNAME
...
Or do I need to use osd-db=/dev/nvme0n1p2 for data=/dev/sdb,
osd-db=/dev/nvme0n1p3 for data=/dev/sdc, and so on?
And just to make sure - if I specify "--osd-db", I don't need
to set "--osd-wal" as well, since the WAL will end up on the
DB partition automatically, correct?
Thanks for any hints,
Oliver
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