Merging oldest incremential... 20h

[infosud]

Hi everyone

I have an infrastructure with 3 ESXi and a vCenter. Backups are made by VEEAM B&R 9.0.0.1491.
The backup server is iSCSI conected to a NAS used only for VEEAM backups.

The backup job starts at 10PM for 25 VM.

That's OK for now, but after the backup job, it goes on "merging oldest restore point into full backup file" and that's the issue. It takes about 20 hours to run and I can't do anything until it ends. That's hard for emergencies restores.

Is ther a way to run this merge once a week, on Saturday or Sunday for example ?

I hope my english writting is good, I'm French.

Many thanks

[foggy]

You're using the forever forward incremental backup method, right? Synthetic activity performed during the merge of the oldest increment is pretty I/O intensive and your target storage seems not to be capable of that load. I recommend switching to simple forward incremental mode with periodic synthetic (to perform the merge once a week) or active (in case the weekly synthetic still takes too long) fulls.

[infosud]

OK, so I just have to do this ?

[veremin]

Correct. To switch from forever incremental mode to incremental with periodic full backups one you should enable either "create synthetic" or "create active full" option, depending on your needs. Thanks.

[infosud]

OK, that's done.

Thanks for your replies