May 22, 2016
Sure, but PVE is based on zfs on linux......

So, saying that ZFS is much more secure than mdadm just because it has bitrot protection, is false.
Between two scrubs, you can loose data.

This doesn't happen with hw raid or mdadm because both trigger a rewrite in case of unreadable sector


New Member
Oct 26, 2010
We don't use anymore hardware raid because of a lot of firmware issues.
On other installation (no proxmox) we are using mdadm
Because of this discussion we are trying to use zfs with proxmox.

After a hour load test on proxmox V5.4.3 we got this error:
May 12 11:17:24 serv1020 kernel: [419044.195091] INFO: task zvol:2398 blocked for more than 120 seconds.
May 12 11:17:24 serv1020 kernel: [419044.195125] Tainted: P O 4.15.18-12-pve #1
May 12 11:17:24 serv1020 kernel: [419044.195142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 12 11:17:24 serv1020 kernel: [419044.195164] zvol D 0 2398 2 0x80000000
And the zfs is dead.

Sorry to say that, but zfs is not ready for production use....


The Proxmox community has been around for many years and offers help and support for Proxmox VE and Proxmox Mail Gateway. We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get your own in 60 seconds.

Buy now!