Testing the version 6.2-4. I created a virtual machine virtIO SCSI. The hard disk is scsi qcow2. I checked the disk using CristalDisk, the speed is good, over the network, too. I took a snapshot of the VM, and then the disk speed plummeted. Can you tell me what the problem might be?
The disk became slower after the snapshot
- Thread starter vadimushka
- Start date
Without knowing how much the difference is. It is expected that snapshots slow down IO, as more data changes. Also qcow2 on a filesystem introduces another layer of writes, in contrast to directly using LVM-thin or ZFS. But of course they also come with their limitations.