I'm using PVE-ZSYNC successfully in a hot/cold availability situation. I've got a situation that would call for a VM to only have one of the hard drives to be synced between two servers instead of the entire VM. I don't believe that is possible with PVE-ZSYNC, but are there any other tools/applications what would provide this functionality? I suppose RSYNC could work, but does this affect openly active files that are hosted by a database? Many Windows-based copy/syncing solutions I've tried before can cause corruption to these types of files. I'm not too familiar with RSYNC or Unix based syncing solutions, yet.
