One AD site - running an SCC Mailbox cluster, two Hub/CAS combo boxes. All Exchange 2007.
I notice on one of the Hub/CAS combos that sometimes users complain of poor OWA performance. If they access via Outlook, all is fine, as is accessing the other Hub/CAS combo.
I can see high page faults/sec (35,000) and pages/sec (25) during these times. I'm not sure if they are the cause or an effect.
How would I find out more? There must be a bottleneck but I don't know where?
OS is Windows 2008 Server.