<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 1, 2017 at 8:41 AM, Jim Kusznir <span dir="ltr"><<a href="mailto:jim@palousetech.com" target="_blank">jim@palousetech.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi all:<div><br></div><div>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.</div><div><br></div><div>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?</div><div><br></div><div>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.</div><div><br></div><div>None of these have snapshots.</div></div></blockquote><div><br></div><div>How come you have qcow2 and not raw-sparse, if you are not using snapshots? is it a VM from a template?</div><div><br></div><div>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.</div><div>You could run virt-sparsify on the disks to sparsify them, which will, if the underlying storage supports it, reclaim storage space.</div><div>You could use IDE or virtio-SCSI and enable DISCARD support, which will, if the underlying storage supports it, reclaim storage space.</div><div><br></div><div>Those are not exclusive, btw.</div><div>Y.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br></div><div>How do I fix this?</div><div><br></div><div>Thanks!</div><span class="gmail-HOEnZb"><font color="#888888"><div>--Jim</div></font></span></div>
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