I recently implemented a RDS server farm with 6 Remote Desktop Servers (Remote Desktop Session Hosts) in it – all RDSH servers are virtualized using Hyper-V and are spread between 4 Virtual Hosts (HP Blade). I’m using Windows Load-Balancing to spread the load between all 6 servers. All 6 VM’s have are Win 2008 R2, 10GB of RAM and have (4) 2.40GHZ Xeon’s configured. They are also part of a Hyper-V fail-over cluster sitting on an CSV on my LeftHand SAN. They all have Office 2007 Enterprise, SEP 11.06 and are fully patched.
When the load between all servers reach about 200 plus, users complain that it gets really slow and sluggish. I’ve noticed that each server has around 30-40 session and is using about 20-25% of cpu utilization and about 4GB of memory.
Any suggestion? What should I be looking for? Is this expected behavior with that kind of load?
Thanks in advance for your commments and help.