ZFS thin

[SysAx]

Hi,

I have a Proxmox server with a bunch of local disks (10 + SSD for ZIL and L2ARC) mounted in ZFS Raidz2 for the VMs.
When I have mounted the storage I forgot to enable the Thin Provision.



I have many VMs running on this storage and I want to know if it's possible to enable now without danger ?

Best regards,
Christian

 

[wolfgang]

Hi,

Yes but all you existing VM will have no effect of this change.
The thin provisioned flag is used at creation time of a virtual disk image.
So all new images will be thin provisioned but the old stay as they are.

 

[SysAx]

Perfect, it's noted.

Best regards,
Christian

 

[Maher Khalil]

How to enable thin provissioning in ZFS

 

[Maher Khalil]

I installed proxmox on ZFS file system
now, I would like to know if thin provisioning enabled or not
and if not enabled, how can I enable it?

 

[fireon]

I installed proxmox on ZFS file system
now, I would like to know if thin provisioning enabled or not
and if not enabled, how can I enable it?

It is only a checkbox. See the first screenshot. You must enable "Thin Provision".