RBD storage is not active after Ceph update from 16.2.15 to 17.2.7

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I have the same problem ？
rename the pool to .mgr and now is storege named cy again active
vm can not foud.
please help me?

My solution was that I did not shutdown the VMs (as long as they are on, they work properly), I restored them from backup (to external storage or to a new pool) and synchronized the changed data in the VMs.