Hello Olivier,
thanks for the quick response.
Have you seen https://www.youtube.com/watch?v=FfUqIwT8KzI ?
I did not know the video yet, but now I watched it. Thank you.
- Can you switch to NFS in your FreeNAS? You'll reduce a LOT your required space to make backup/snapshots
We make some tests about 3 years ago. At this time NFS was slower than iSCSI. Overall, we felt better with iSCSI. Are there any other experiences in this regard?
- Only the first snap will require doubling space, not extra snaps.
Also on thick provisioning?
- Linux VM: they are aware of a snapshot because of the disk driver they have by default. No problem at all without VSS, it's somehow "bundled".
Did I understand you right, that I could backup a linux VM with mysql database every time without any risk of losing data?
Backup Flow:
- Backup start
- XO takes Snapshot1
- XO exports Snapshot1 to another System
- IF Full-Backup: XO deletes Snapshot1
- IF Delta OR Contiuous Backup: XO archives the snapshot until the next backup run
- Next Delta Backup Start:
- XO takes Snapshot2
- XO "exports" the Delta between Snapshot1 and Snapshot2 to another System
- XO deletes Snapshot1 and keeps Snapshot2 for the next delta backup run
- and so on
So while the backup runs I need space for 1 snapshot when I do a full backup, and 2 snapshots if I do a delta backup.
Is this right?
Thank you very much
Buschi