delta backups with offline snapshot: VMs do not start after snapshot, they start after transfer is done.
-
Hi,
In theory, it should start just after the snap, not waiting to boot. Let me ping @Bastien-Nollet or @florent
-
Hi @k11maris,
I reproduced the same behaviour, but I think this is perfectly normal.
If you want to only do an offline snapshot and restart the VM while the export is happening, you should uncheck the 'Offline backups' option and set 'Snapshot mode' to 'Offline'.
-
@Bastien-Nollet where is this "offline backups" check option ?
I'm aware of snapshot mode/offline, but not offline backups ?
EDIT : my bad, I found it, it's only available for FULL BACKUPS, not DELTA BACKUPS
-
Hi @k11maris,
I just noticed I originally misread your message, you were already talking of the 'Snapshot mode' option I mentioned.
Could you send us a screenshot of the backup job configuration?
-
@Bastien-Nollet
I am using delta backups, not full backups. So there is no option called "offline backup".However, I was in fact using "backup" before and had "offline backup" enabled. Maybe this option is still checked, but invisible... I did not create a new backup job, I simply de-selected "full backup" and activated "delta backup".
This is my configuration:
-
Ok, thanks for the information.
I think I saw somewhere a bit of code that saves the value of 'Offline backup' so users don't have to re-check it if they go back to full backups, but it shouldn't interfere with delta backups.
I'll investigate this and keep you informed.
-
Thanks. I also used "disaster recovery" with the "offline backup" option before.
I also just noticed: Every time I open the backup settings, the email address field is empty.Btw: It is really confusing that it still says "disaster recovery" while the documentation uses other names....
-
I made a fix for this: https://github.com/vatesfr/xen-orchestra/pull/9228
I'm not that familiar with disaster recovery, I'll discuss your point with the team.
open fix(backups): fix offlineBackup value #9228
-
@Bastien-Nollet Hi, there is another issue: When I switch back from "delta backup" to "disaster recovery" or "Backup", the checkbox for "offline backup" and the drop down menu "offline" is greyed out so that it cannot be changed.
-
Hi @k11maris,
You can either specify the snapshot mode or check the "Offline backup" option.
It's a bit counter-intuitive, but to uncheck it, you can set "Snapshot mode" to "Normal", and you should be able to modify it. (then you can put back the snapshot mode to offline)
-
@Bastien-Nollet I can't change those options, both are greyed out (locked / disabled).
-
With new created backup jobs, everything works. Clearly there are some hickups in the GUI when switching between backup modes. Not sure if it is worth fixing with XO6 coming up, though.
-
@k11maris yeah but with new jobs, you enter a new Backup Chain ?
would be nice to keep those existing (imagine if you have LTR to re-backup)
I don't know a veeam way to "map backup" to get the chain continuity in XO Backup.
-
@Pilow Yes of course. But I don't really care about keeping the backup chain. I am just getting started with my backups
In fact, the snapshots for deltas take too much space on my storage, so I divided the VMs into 2 groups. One with daily delta backups and one with weekly offline full backups which don't need snapshots.
I think there is a way with changed block tracking to use delta backups without snapshots, right? I'll have to look into that.
I'd also like to mirror the VMs to the local storage of a server outside of the pool. This goes to another building, for emergencies. This would also be a combination of weekly full offline backups and daily delta backups. The latter would again require snapshots and it seems it would create 2 snapshots per VM, then. One for the backup job and one for the mirror job.
-
@k11maris said in delta backups with offline snapshot: VMs do not start after snapshot, they start after transfer is done.:
I think there is a way with changed block tracking to use delta backups without snapshots, right? I'll have to look into that.
ypu need to check those
and yes a VM that is BACKUPed and REPLICAted have 2 snaps.
didn't see a snapshot for Disaster Recovery job though (seems to be snaped, but deleted afterward as there is no need to delta on the next snap), you could use these, but full only and one temporary snapshot during the DR export.
