Veeam Backup & Replication Ver 5 vs. Ver 6

[linux4guru]

Hello,

Has anyone see a network performance drop on version 6?

We are comparing version 5 and 6 after we upgraded from 5 to 6 and we saw some performance drop.

Both veeam are virtualized environment connecting to the same iSCSI target.

Version 5 - backing up a test VM - that job runs at around 33MB/s

Version 6 - backing up the same test VM - that job runs at around 18MB/s to 21MB/s

What changes from version to version 6?

[tsightler]

Are you actually measuring the speed or just using the numbers reported by Veeam? The calculation reported by Veeam changed a lot between V5 and V6, comparing their numbers is not really possible. What's the "wall clock" time to perform the backup between the two?

[Gostev]

Previous performance counters is the legacy of VCB and snap&scan incremental backups days, they did not make much sense with CBT backups - just showed the inflated numbers of speed-of-doing-nothing. Finally got rid of them and replaced with what makes more sense (raw read speed of the source data).

[linux4guru]

I noticed the network performance from the Veeam v6.0 server average around 10 to 20 percent network utilization at time vs. Veeam v5.x where it average around 30 to 80 percent network utilization at time.

[Gostev]

Sure, this is expected - with the data source unchanged, you should be seeing 3-4x reduction in network utilization comparing to v5. Thanks to the traffic compression added to replication in v6. There are many other new replication features in v6, they are all covered in the What's New document - be sure to read it, if you have not done so already. Thanks!

[linux4guru]

Thanks. I will check that out.