Can snapshots slow down running backup

[dood]

Hello,

I've just upgraded to Veeam B&R 7 (from 6.5), everything went fine.
After this upgrade, jobs was always working good througt our two datacenters (a few hours for 10 VM).

This week-end a scheduled task for file copy slow down Veeam Backup. I'm ok with that, no problem.
I don't know actually why but snapshots created by Veeam wasn't deleted.

I should remove them tonight but actually veeam jobs are extremly slow (10min before, 2 hours now. Bottleneck = source).

Do these Veeam snapshots can slow down backup ? (even if the snapshot is a on another VM, not the one which is backuped)
No support case open, should check a few things before.

[dood]

Ok i forget to patch my version 7.x
I saw in patch 4 : "If the same ESX(i) host is added to Managed Servers both as a part of the vCenter, and as a standalone host, the jobs fail to remove VM snapshots correctly."

Go patching and removeing every snapshot, i'll keep you informed about perf issues.

[Vitaliy S.]

Existing snapshot can slow down the process of snapshot consolidation, that's true. BTW, can you please clarify why you have the same hosts added as part of vCenter Server and as standalone?

[dood]

As I recall, I add standalone host to be able to backup my vCenter server which is a VM as my others production servers.
Patch 4 solve this issue.

I'm actually removing all snapshots, hope everything will be as fast as last week

[Vitaliy S.]

Yes, with the latest release you don't need that workaround anymore.

[J.Haatainen]

This topic helped me in past. I did some testing on one environment to see that how big is the impact on having old snapshots within VMs that are backed up with Veeam. Impact was quite huge, and it really is the consolidation which slows down overall job performance. Some results can be found here: http://scattereditnotes.blogspot.fi/201 ... veeam.html