[ovirt-users] Re: Disk Allocation policy changes after a snapshot

Hi I agree with everyone about using preallocated disks for DB and that is the setup I have, the issue I am raising is that when you create a snapshot of a preallocated disk it changes to a sparse disk, because of this change in policy the VM crashes under heavy writes. I modified vdsm.conf and added [irs] volume_utilization_percent = 25 volume_utilization_chunk_mb = 2048 This has cured the VM crashing under intense writes after I have created a snapshot. My setup is using iSCSI disks