Hey Anthony, Anthony D'Atri via ceph-users <ceph-users@ceph.io> writes:

I’ve used rbd-mirror to do this sort of thing in the past. It’s straightforward with unattached volumes. I had a homebrew harness that for attached images would handle a reboot of the client with reattach.

That seems to be a way forward from what it seems. There are quite some details to address anyway from what I can see, as clients also need to be reconfigured and partially moved to a different network. Thanks for the pointer! Nico -- Sustainable and modern Infrastructures by ungleich.ch