We've seen a recent trend where LSO is auto-discovering RBD devices in OCP clusters that have Openshift virtualization installed:


[bmcmurra@supportshell-1 04066666]$ omc get pv | grep virt | grep 240
pvc-a75e88f7-d2f9-49a6-ade0-3875819c2063   240Gi      RWX            Delete           Bound      linux-dev-vms/varhdv242-vm-537832-hwl7q                                                   ocs-storagecluster-ceph-rbd-virtualization   <unset>                          23d
pvc-e572aaca-e658-4e7d-b226-ed2986c5cdfc   240Gi      RWX            Delete           Bound      linux-dev-vms/varhdv239-vm-537828-zmntp                                                   ocs-storagecluster-ceph-rbd-virtualization   <unset>       



[bmcmurra@supportshell-1 04066666]$ omc get pv | grep local | grep 240
local-pv-f6253c82                          240Gi      RWO            Delete           Bound      openshift-storage/ocs-deviceset-local-volume-sc-0-data-11nq8k4                            local-volume-sc   

     

This regularly results in ODF placing osds on rbd block devices. Can we enable a way to prevent LSO from auto-discovering all RBD devices?

    ODF 4.x/OCP 4.x/Openshift Virtualization 

 1. Install an OCP cluster with Openshift Virtualization, LSO 
2. Deploy a few virtual machines with the "ocs-storagecluster-ceph-rbd-virtualization" storage class 
3. See if new LSO PVs are provisioned using the rbd storage devices being consumed by the virtunalmachines

 LSO auto-discovers ODF rbd devices

LSO ignores ODF rbd devices