Hello, i'm currently planning a larger migration from xenserver to proxmox.
we want to use a proxmox cluster without shared storage, i.e. local storage only. zfs is perfect for that. whatever, we have found zvol (the proxmox default) is not optimal for us, because of the following reasons: - zvol cannot be replicated (on a "per dataset" basis) with pve-zsync. we want to replicate our datasets to central backupserver. - other replication tools (e.g. syncoid) won't handle zvols well, i.e. when zvol is deleted on the source , it is not deleted on the target. that is a problem when we "shuffle around" zvols between different pools/datasets or servers. they would need extra scripting/handling on the replication target. - backing up zvols on the replicated server (for example with borgbackup) is also not straightforward (because they are no files and snapshots from a "backupsnap" aren't easily acessible, too) - zvol has known performance issues , e.g. ( https://github.com/openzfs/zfs/issues/10095 ) is anybody using qcow2 on zfs in production at a larger scale or someone wants to share his thoughts/experience with using qcow2 on zfs ? regards roland _______________________________________________ pve-user mailing list pve-user@pve.proxmox.com https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
