Right now I have LVM-thin. It allows for backup and snapshots. But I cannot clone or use replication.
You did not mention replication in your first post.Right now I have LVM-thin. It allows for backup and snapshots. But I cannot clone or use replication.
Basically I need to know what allows me to do backup, snapshots and replication, except Ceph.
Any way to have disk overcommitment on ZFS? I've migrated a VM that has a 1 TB disk but only 20GB are used. On the LVM-thin node 20 GB are "blocked". On the ZFS node the `raw` image appears as 1 TB and it "blocks" 1 TB of space in the pool.You did not mention replication in your first post.
=> If you need storage replication, ZFS is the way to go (and the only option)
I've restored the VM on the "local-zfs" pool, created by default. The size is correct, 20 GB.ZFS is thin-provisioned. A 1TB Zvol that only uses 20GB should only consume 20GB of the pool by default. And LZ4 compression should be enabled by default which will also strip down all zero data. If it really uses the full 1TB you should check if there are snapshots present that are blocking the freeup process or if discard/trim isn't working.