We have an odd situation that may simply be due to our own noobness with VMware. We have a virtual server running in a virtual host that shows in VCenter that it is consuming nearly 8 GB of RAM. But when we RDP into this Windows Server 2008 R2 server, task manager shows the OS is only using 2 GB of RAM. What's with the discrepancy? Also, can someone point us to a good performance tuning guide for Windows File servers running in vsphere4?