We have a reliable and quick FMS14 serving 108 databases to just under 100 users with no problems.
Spec - HP ML350p G8 - 2 x E5-2620 2Ghz Xeon - Windows Server 2008 R2 64bit - 32Gb RAM - 2 x 146Gb 15k 6G SAS in Raid 1 for the OS and 4 x 300Gb 15k SAS in Raid 10 for the databases.
A month ago we moved to a brand new server running Hyper-V.
Spec - HP ML350p G9 - 2 x E5-2650 2.3Ghz Xeon - Windows Server 2008 R2 on Hyper-V - 32Gb RAM - 8 x 300Gb 15k 12G SAS in Raid 10
But performance was very poor so we had to revert to the original server.
After researching the problem the only thing we could put it down to was the disks being formatted as VHD. So we changed the disks to VHDX and initial tests were fine with 3 or 4 connections. So last night we rolled out the new server again, and again we have performance issues.
Any help would be greatly appreciated.