we need to revamp our current Veeam infrastructure (up and running since late 2012) because our business workload has dramatically changed and the amount of daily incrementals is seriously going up - and backup performance is slowing down. So I'm asking you some recommendations on how to improve speed and reliability.
We presently use Veeam B&R 9 to backup 50 VMs (Vmware ESXi 5.5) to a FAS2240 SATA backup repository (local iSCSI volumes mapped through a Windows 2008 R2 Storage server). We have a W2008 R2 hot-add proxy. Production storage is another beefy FAS2240 (FC storage) with a mix of SAS and SATA aggregates. We also replicate all of the VMs to a remote DR site (100 Mbps link). Local backups have been running fairly well but we now struggle with bigger fileservers because of their large incrementals (always in the 100-150 GBs every weekday) and finalization may take several hours. This of course impacts replication and jobs can even overlap.
So, we were wondering how we could improve backup speed, finalization and decent replication. We were thinking about storage-array based snapshots, or just simple DirectSAN backups. Maybe we could add another beefy proxy and backup repository. For decent replication times, we could upgrade the current link to the DR site.
Thank you for your valuable suggestions.