I'm using Veeam Backup & Recovery version 6.5 with VMware vSphere ESXi 5.1. The VM storage is local to the ESXi server in a RAID5 SAS array. Veeam is running on a separate physical machine and backing up over a 2 Gbps aggregated link, onto an external USB 2.0 hard drive.
Veeam seems to top out at about 22MB/s when performing a backup operation, and indicates that the bottleneck is the source. This seems too slow given the setup, and I'm wondering if I'm missing something. Can anyone shed any light on my situation?