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  • poor exchange performance

    Dear all, my apologies if this is posted in the wrong section, but its only happening on my exchange server so would point to something connecting or on it causing the issue.

    i have a dl360 g3 server with 300gb drives in as my exchange server (i have 3 others exactly the same - this may be pertinent).

    its running win 2k3 server sp2 with exchange fully patched up.

    last week I was getting 9646 errors mapi sessions being exceeded, but i think thats fixed now as i have dropped the keep alive time to 5 minutes (sp2 sets to 2 hours)

    however if i sit and ping the exchange server it drops packets, i am trying to upgrade to the latest network card drivers, but its very slow.

    now the reason I have posted here is that this is the only dl360 that i have doing this, all the others are running win 2k3 as well, all fully patched, and not one of them drops a packet, I have deliberately left 2 of them at the older drivers for the network and still no issues.

    i have dropped the patch on them to switch of the scalable network fix in sp2, and checked all the reg entries to confirm this.

    i have read on the hp site that older versions of the drivers can cause this when teamed and they should be re teamed with a different setup, but the versions of the software involved are newer than that mentioned in the hp pages.

    so at present I have an exchange server that periodically needs rebooting at least once every 12 hours (before last thursday usually went weeks) no error messages when she comes back up, all mounts fine, and good for a few hours, but loses packets.

    i have changed network switches and cables, but still no joy.

    the one last thing that has changed was last week (thursday) we were upgraded to a 100mb internet connection. now logic tells me this should not be making any odds, experience says don't rule it out the internet link guys are good and will swap me back next week just so we can rule it out, but I am pulling my hair out over this (and losing sleep)

    if anyone has any ideas please let me know, any more info needed please ask.

    I am off to try and do the network card drivers, and lose more hair.

    Also could someone let me know how i would go about talking to a server / exchange specialist if I can't fix this to get it sorted out? I am in the essex, uk area and would appreciate any recomendations. the last lot i had in where useless, charged 600 and i fixed the issue 2 days after they gave up.

    sorry if its wrong to ask, but i am desperate.

  • #2
    Re: poor exchange performance

    Not wrong to ask at all, that's what forums are for.

    That server has 2 NICs I believe so try each on individually rather than teaming. Try forcing the card and switchport to 100full and testing too.
    cheers
    Andy

    Please read this before you post:


    Quis custodiet ipsos custodes?

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    • #3
      Re: poor exchange performance

      Originally posted by AndyJG247 View Post
      Not wrong to ask at all, that's what forums are for.

      That server has 2 NICs I believe so try each on individually rather than teaming. Try forcing the card and switchport to 100full and testing too.
      well sir you are not only a genius you are telepathic as well

      I did this on friday before i left (after posting my question) but there were 2 reasons why it is strange.

      a) i had not yet read your reply
      b) i did it by accident

      i had finally convinced the machine to update all its software, and now not only was i losing packets, one of the nics would not enable except manually.

      so i disolved the team, knocking the server off the network completely, and when i tried to reteam them, i couldn't find where to put in the static ip. anyway as i was panicing i decided to configure a single card with the static ip, i have disabled the other until i work out how to team them properly, and voila it is working perfectly.

      thanks for your help, it was obviously correct and intuative, and i apologise for being a duffer and not thinking of it sooner. so much for 20 years experience

      cheers again.

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      • #4
        Re: poor exchange performance

        Originally posted by jesta1865 View Post

        thanks for your help, it was obviously correct and intuative, and i apologise for being a duffer and not thinking of it sooner. so much for 20 years experience

        cheers again.
        Sometimes the most obvious things don't appear obvious at the time... especially when you have a problem to troubleshoot. Well done on the fix and thanks for posting the solution.

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