I've not tried this yet, I believe I know the answer, but lets say you have 3 or 4 volumes for exchange or sql databases.
Normally I'd say create a volume collection and have them be under 1 protection policy.
Since a verification over a 1Gb link can sometimes take awhile.
Could you split the 3-4 volumes into their own protection policies and run them at the same time?
Or is the Nimble VSS writer going to be tied up with a single job at a time?
The volume collection of course seems to do 1 volume in a collection, finish it, then move on, and so on.