[SOLVED] QCOW2 thin Provisioning issue

[kakalpa]

Hi,

Im pretty much new to proxmox so far im in love with it. I tried to migrate one of my windows servers to the pve physical disk is 1TB converted to a vmdk file as a growable disk which is equal to thin provisioned the vmdk file is roughly around 60 GB. moved it to my PVE and converted it to a qcow2 and imported the disk but after importing in occupied the entire 1TB of space again. is there a way to import or convert to qcow2 format excluding the unused bits just like thin provisioned

import command I used :

qm importdisk 103 server-HRACC.qcow2 VM_Storage

convert command :

qemu-img convert -f vmdk server-HRACC.vmdk -O qcow2 -o preallocation=off  server-HRACC.qcow2

pointing me in the right direction is highly appreciated

 

[dylanw]

Hi,

Have you had a look at our guide for shrinking qcow2 images [1]? It is possible that only the final section will be necessary.

[1] https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files

 

[kakalpa]

Hi,

Have you had a look at our guide for shrinking qcow2 images [1]? It is possible that only the final section will be necessary.

[1] https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files

Will try that. Is there anyway to reduce at importing ? Since the converted vmdk is only 60 gb. It is kind a wired that it is recreating the trimed space again.

Worked Fine. thank you good sir. in the hard disk it still shows as 900+ gbs but only around 56 Gbs allocated in the LVM.

 

[dylanw]

Will try that. Is there anyway to reduce at importing ?

qm import doesn't have any features that would allow this, but you could look into virt-sparsify [1] (part of the 'libguestfs-tools' package), which seems to allow for conversion with sparse awareness.

[1] https://libguestfs.org/virt-sparsify.1.html