Zfs disk size.

[ozgurerdogan]

I am using zvol. Windows kvm has 250 GB disk and only 150 GB is in use. But zfs list show as:

NAME USED AVAIL REFER MOUNTPOINT
P2/vm-124-disk-1 250G 1.07T 250G -

Is this normal?

 

[wolfgang]

Hi,

yes if you did not check the thin-provisioned checkbox in the storage definition.
see https://pve.proxmox.com/pve-docs/pve-admin-guide.html#storage_zfspool

 

[ozgurerdogan]

Thank you. I read many articles but confiused. I enabled thin-provisioned on storage AFTER wm is created and used for some time. But it did not change anything. What must I check? Do I need to zerofill disk inside vm?

 

[wolfgang]

After the image (VM) creation you can't change it anymore.

 

[ozgurerdogan]

Sorry I did not mention that; after I tried zerofilling this vm, I see its size 250GB but other wms are not same,
For example vm 113 has 50 GB limit and I can see the real usage in listing (20GB),
NAME USED AVAIL REFER MOUNTPOINT
P2/vm-113-disk-1 20.8G 1.07T 20.4G -
So it seems like I need to zerofill or something?