local-zfs 2cowq

[Brandon222]

I'm evaluating proxmox for my environment to see if we want to launch it.

I have just installed proxmox, and have 2 servers clustered. I understand that to use replication you need to be in zfs, but when I am creating a machine using local zfs, format is grayed out and I need to use 2cowq. How is this corrected?

 

[Alwin]

See here.
https://forum.proxmox.com/threads/new-virutal-machine-will-not-start.44889/#post-214351

 

[WhiteStarEOF]

I'm evaluating proxmox for my environment to see if we want to launch it.

I have just installed proxmox, and have 2 servers clustered. I understand that to use replication you need to be in zfs, but when I am creating a machine using local zfs, format is grayed out and I need to use 2cowq. How is this corrected?

When Proxmox uses ZFS, it uses a zvol for each virtual disk, rather than a dataset with qcow2 files. The performance is better using zvols. If you're dead set on using qcow2 files, you can create a dataset, and point Proxmox to it as a Directory. I don't know how well this works, if at all, in a cluster, though. But the performance is abysmal, and this probably cuts out any opportunity for you to manage ZFS snapshots and replication via the Proxmox GUI.