Last week we moved on of our databases from a physical SQL 2008 R2 clustered server to a virtual server.
For the majority of the databases that moved we have seen no issues but for our largest database (67 gbs) we are now receiving Visual (Not Responding) on several windows. Accounting window which is normally slow 10-11 seconds to open now can take 25 - 40 seconds. But not all of the time. One time it opens normally and next time 40 seconds.
We don't see any blocks or locks on the database.
We've increase the instance memory to 16 gbs with no changes.
Has anyone see any issue like this after moving SQL to a VM?