I wouldn't create a separate partition for the DB and let the OSD handle it. First, you don't waste space (even a couple of GB begin to pile up on a lot of OSDs) and you have a lot less to manage. Just create the OSD on the raw device (I use `ceph-volume lvm create --bluestore --data /dev/sdXY`) Regarding the WAL I can't give any advice. I have never thought about tuning this option/ Cheers Boris Am Mo., 25. Apr. 2022 um 12:59 Uhr schrieb huxiaoyu@xxxxxxxxxxxx < huxiaoyu@xxxxxxxxxxxx>: > Thanks a lof, Boris. > > Do you mean that, the best practice would be to create a DB partition on > the SSD as OSD, and disable WAL by setting bluestore_prefer_deferred_size= > 0, and bluestore_prefer_deferred_size_ssd=0 > > Or there is no need to create a DB partition on the SSD and let the OSD > manages everything including data and metadata? > > Do not know which is the best strategy in terms of performance...... > > > -- Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend im groüen Saal. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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