On Fri, Sep 1, 2017 at 8:41 AM, Jim Kusznir <j...@palousetech.com> wrote:
> Hi all: > > I have several VMs, all thin provisioned, on my small storage (self-hosted > gluster / hyperconverged cluster). I'm now noticing that some of my VMs > (espicially my only Windows VM) are using even MORE disk space than the > blank it was allocated. > > Example: windows VM: virtual size created at creation: 30GB (thin > provisioned). Actual disk space in use: 19GB. According to the storage -> > Disks tab, its currently using 39GB. How do I get that down? > > I have two other VMs that are somewhat heavy DB load (Zabbix and Unifi); > both of those are also larger than their created max size despite disk in > machine not being fully utilized. > > None of these have snapshots. > How come you have qcow2 and not raw-sparse, if you are not using snapshots? is it a VM from a template? Generally, this is how thin provisioning works. The underlying qcow2 doesn't know when you delete a file from within the guest - as file deletion is merely marking entries in the file system tables as free, not really doing any deletion IO. You could run virt-sparsify on the disks to sparsify them, which will, if the underlying storage supports it, reclaim storage space. You could use IDE or virtio-SCSI and enable DISCARD support, which will, if the underlying storage supports it, reclaim storage space. Those are not exclusive, btw. Y. > How do I fix this? > > Thanks! > --Jim > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
