none
Page faults/sec and Exchange RRS feed

  • Question

  • Hi

    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
    Saturday, May 14, 2011 2:35 AM

Answers

  • Ensure that the server has enough memory.  Ensure that your load balancing is properly distributing the load across the CAS servers.  Ensure that the page file is at least the amount of physical memory plus 10MB.

     


    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Saturday, May 14, 2011 3:32 AM
    Moderator
  • Hi
       As far as I know, store.exe always consumes all the memory. So OWA relevant process can’t get  enough memory and affect poor OWA performance. My suggestion is to check server memory when users complain it.  According to high page faults/sec, my suggestion is to increase memory.
       Crowley also mentions load balance. You can check it too.

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Monday, May 16, 2011 6:09 AM
    Moderator

All replies

  • Ensure that the server has enough memory.  Ensure that your load balancing is properly distributing the load across the CAS servers.  Ensure that the page file is at least the amount of physical memory plus 10MB.

     


    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Saturday, May 14, 2011 3:32 AM
    Moderator
  • Hi
       As far as I know, store.exe always consumes all the memory. So OWA relevant process can’t get  enough memory and affect poor OWA performance. My suggestion is to check server memory when users complain it.  According to high page faults/sec, my suggestion is to increase memory.
       Crowley also mentions load balance. You can check it too.

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Monday, May 16, 2011 6:09 AM
    Moderator