Ubuntu
zfs-linux package

  1. Bug #1847105
  2. Comment #20

Comment 20 for bug 1847105

Revision history for this message
In , berrange (berrange-redhat-bugs) wrote :

Yes, it seems fallocate on ZFS is problematic:

  https://github.com/zfsonlinux/zfs/issues/326

With that in mind, the right answer for ZFS is probably for virt-manager/virt-install to NOT ask for any preallocation at all in the ZFS case.

The fun of course is how does virt-manager know whether the image it is about to create is on ZFS or not. This might point to an RFE for storage pools to report whether a given storage pool instance is capable of efficiently preallocating or not.