[ceph-users] Luminous LTS: `ceph osd crush class create` is gone?

Linh Vu vul at unimelb.edu.au
Thu Nov 2 23:04:43 PDT 2017

Hi all,

Back in Luminous Dev and RC, I was able to do this:

`ceph osd crush class create myclass`

so I could utilise the new CRUSH device classes feature as described here: http://ceph.com/community/new-luminous-crush-device-classes/

and in use here: http://blog-fromsomedude.rhcloud.com/2017/05/16/Luminous-series-CRUSH-devices-class/

Now I'm on Luminous LTS 12.2.1 and my custom device classes are still seen in:

`ceph osd crush class ls`

`ceph osd tree` and so on. The cluster is working fine and healthy.

However, when I run `ceph osd crush class create myclass2` now, it tells me the command doesn't exist anymore.

Are we not meant to create custom device classes anymore?


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