This one has got me so im hoping someone can help.
I have a client with a SBS 2003 server, patched and up to date with MS updates, service packs and hardware drivers and firmware.
The server is a HP Proliant DL380 G5 using a smart array p400 disk controller, 2x HP NC373i multifinction gigabit server adapters, Intel Xeon E5335 quad core and 4gb HP ram.
The server perfoms the roles of AD, Echange, Sharepoint, file and print server, ISA 2004. It also has backup exec 12.5, Sage 50 Acconts 2008 and sophos SBS.
This problem is described as follwos:
Every day at seemingly random times an error occours that logs the following event:
Event ID: 2019
The server was unable to allocate from the system nonpaged pool because the pool was empty.
This error is logged in the system event log every 61 seconds and during this time all other services on the server stop and attempt to restart but there is no available memory. Eventually even SBcore services fail and the server is rendered usless. Its not possible to log on to the console and the only step forward is to turn it off. Once restarted it works perfectly until the error happens again.
This issue started a few months ago, it seems to suffer this problem for a few days then it will be fine for a few weeks to a month before it starts doing it again. once it starts it will do this every day, sometimes even twice daily.
Since the server never actually blue screens there are no memory dumps.
I have updated all the drivers and firmware for the NC 373i's network adapters and specified by HP. I have also disabled TCP offloading and Recieve side sending as these have been noted for causing similar issues.
I have also removed all software and applications not related to server roles ( adobe, vnc, silverlight etc)
any ideas will be appriciated. Thanks for looking.