Slow win2k3 file server

Posted on 2010-01-05
Last Modified: 2013-12-02
We used to have a windows 2003 server that acted as a file server. The file server handles folder redirection for 200+ users. Their dfs root is on the qx100. Term servers pull user profiles from the San via smb.  It had a 2gig hba connected to a ax100.

That server was also a domain controller.

So I had another machine with the same hba (qla200) installed win2k3 and attached the ax100 to it.

If a couple people log in, it's fine, but when the day gets going that 200+ people start to log in, it get to the point where

1 can't rdp to server, but can ping and access wmi controls
2 file serving is speratic at best. Some can access their pst file, some can't.

Seems like datas corrupt, but after hours all data seems fine.

Machines running out of resources. Lookng for ideas while I'm on my way to datacenter to look at machine.

Question by:kblackwel
    LVL 8

    Expert Comment

    I have experienced this in the past with file servers and PST files. Specifically RDP failing but working again when the load calms down. Also some times if you just keep trying to connect with RDP it wall all of a sudden start working. Then there was the file serving part, much the same as you.

    I turned out to be 2 things. The first was the snapshots that we were running every couple of hours would kill the server for 20mins (ish). That made things a million times better. then there were the .pst files.....

    MS dont recommend putting pst files on a server as they use up a lot of connections and them open.

    Have a read of the following....

    We ended up moving all of the PSTs back into exchange (and created a GPO that stopped new psts being created) where we could benefit from single instance storage and the problem NEVER reoccured.

    Not really a solution but definately something to consider.
    LVL 8

    Expert Comment

    Ooops just re-read my post. It should read "Stopping snapshots made things a million times better."

    Accepted Solution

    This article addresses the problem.

    After applying the reg setting, it started performing as expected.

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