ZFS is causing ARC_Prune storms.

[been2siliconvalley]

How can I upgrade ZFS in my Proxmox install?

Does anyone have upgrade instructions somewhere? The wiki seems to not cover this.
I need to install ZFS version 0.7 or newer.
Proxmox v5 ships with ZFS version 0.6.5.9-1.

Someone has logged a defect with the exact problem I have, on the ZFS ON LINUX github repo. I believe the solution is to simply upgrade ZFS to the latest version and do some tuning.
- g/i/t/h/u/b/.com/zfsonlinux/zfs/issues/6630

My server has an incredibly high load of above 400 when this occurs. The only thing I can do, is to reboot.

The problem is caused by using KVM VM's on the mounted ZFS pool.

Any hints much appreciated!!!

 

[tom]

See also https://forum.proxmox.com/threads/upgrade-zfs-0-7-0.35943/

 

[been2siliconvalley]

Thanks for pointing to the discussion held on upgrading the ZFS and Kernel versions.

I have now raised a Proxmox bug on the issue. I guess I've exhausted my options for now, and all I can do is wait.

What is the fastest way I can get the latest ZFS and SPF builds for Proxmox?
Wait for them to appear in Proxmox Testing repos?
Wait for a new Proxmox release?

 

[fabian]

PVE 5 is on ZFS 0.6.5.11 btw. 0.7 will still take a bit until test packages are available, and then a bit more until they are included in the regular repositories. if you check the forums regularly, you will not miss when 0.7 is available