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How to configure different disk assignment for different CephStorage nodes using tripleo newton

Hello, thanks for reading my question.

I am trying to install an OpenStack small laboratory in my company: 3 controllers nodes, 2 ceph nodes and 1 compute node.

I've used 'ceph::profile::params::osds' to configure the devices to be used by CephStorage nodes. It worked!

Now I want to setup different devices on different CephStorage nodes. For example use /dev/sdb in overcloud-cephstorage-0 and /dev/sdc in overcloud-cephstorage-1.

Y read in ceph documentation, that it can be achieved using 'crush'. What I haven't realized is how to do using tripleo.

Note: I can redeploy the whole cloud if necesary.