Re: [ovirt-users] How long can a disk snapshot exist for?

Hi Ryan, Should have replied to all, my bad. See my answer embedded below: ----- Original Message ----- The snapshot's size itself is determined when it's taken according to the disks size at the time. It then stays the same. When taking a snapshot, the active image of the disk is "frozen" at this point in time, and a new, empty active image is created to hold the new data on the disk. The new data is saved in the form of diffs, so if there are mainly additions to the snapshot time, the space difference of the snapshot is negligible. But if the diffs include many reductions from the snapshot's state - this might consume a lot of space, again, depending on your usage. Note that you're also limited by the disk's size. But there's no (or very All the vm operations take into consideration snapshots. Storage is an issue, but so is every operation you'll make on the vm. When you have one image, the vm is handled only through this image. But when you have several, for each operation the right layer will search for the existence/ability to do the operation in all the snapshots (worst case). So there is in fact an impact, but it's due to the mere existence of the snapshots and their number, not their age. We support 26 snapshots per VM, but you should only use it if you actually need the backup. If you need RT performance, try to avoid it as possible.