Shrink disk size vm/lxc

[Arty]

Hi,

Increasing work fine from GUI and CLI. But, I would like to know, is it possible to reduce the size of the disk in vm/lxc? And, if it possible, how to do it?
In documentation I can't find about it.

Thanks!

 

[wolfgang]

Hi,

shrinking has to be done manual.
This is because you have to shrink the guest file system before you can shrink the virtual disk image

 

[samontetro]

Is there a way to do this while restoring a backup or cloning a VM ? I'm too interested in shrinking a big VM after moving out several gigabytes of data as it raise backup problems (large backup storing static data).

Patrick (using PVE 4)

 

[denos]

Hi,

Increasing work fine from GUI and CLI. But, I would like to know, is it possible to reduce the size of the disk in vm/lxc? And, if it possible, how to do it?
In documentation I can't find about it.

Thanks!

If you're using a local ZFS pool with LXC on a filesystem (the default for local ZFS storage) rather than a disk image , you can shrink or grow the filesystem at any time with (adjust 100G to the desired size):

zfs set refquota=100G POOL/FILESYSTEM

Disk images or block devices can only be managed as Wolfgang indicated.