It’s nice that URbackup can create snapshots on the fly. But it would be nice if one could enable a feature where all snapshots are created at the same time. This would be very helpful like in a situation where your mysql logs are on a different partition and therefore in a separate snapshot than your mysql data files.
Yeah, the client can do it on Windows (via VSS API). The xtrabackup method to backup mysql should be even better than snapshots though.
Actually I have no idea how it would even be possible. In the mysql case one can probably snapshot/freeze the logging fs before the other one, but I did not see a way to create a atomic snapshot of multiple devices on Linux.