Ceph Assign Certain OSD to Pools of Same Class Type

[trystan]

I have a number of OSDs in a 3 node ceph cluster and would like to properly assign only specific OSDs to a new pool. I can find documentation for how to use the class type of the drive in luminous but not for manually selecting arbitrary OSDs.

Thanks

 

[Alwin]

You can find the pool assignment on device class in our docs. https://pve.proxmox.com/pve-docs/chapter-pveceph.html

If you want to hand select OSDs that go into a pool, then you need to edit the crush map (directly or command line).
http://docs.ceph.com/docs/master/rados/operations/crush-map-edits/
http://cephnotes.ksperis.com/blog/2015/02/02/crushmap-example-of-a-hierarchical-cluster-map