Hi, assuming you're running Octopus the deployment guide [1] explains it quite well. To specify rocksDB/WAL devices you have to make use of "drive_groups" [2]. Regards, Eugen [1] https://docs.ceph.com/docs/octopus/cephadm/install/#deploy-osds [2] https://docs.ceph.com/docs/octopus/cephadm/drivegroups/#drivegroups Zitat von Will Payne <will@teambadger.co.uk>:
Hi,
Total newbie question - I'm new to Ceph and am setting up a small test cluster. I've set up five nodes and can see the available drives but I'm unsure on exactly how I can add an OSD and specify the locations for WAL+DB.
Maybe my Google-fu is weak but the only guides I can find refer to ceph-deploy which, as far as I can see, is deprecated. Guides which talk about using cephadm / ceph only mention adding a drive but not specifying the WAL+DB locations.
I want to add HDDs as OSDs and put the WAL and DB onto separate LVs on an SSD. How?
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