Help with Windows 2000 Server and memory
What is the best way to detect if my Windows 2000 Server is running out of
memory? Also, what are the counters I use to detect physical memory constraints and how I calculate
how much physical memory I need?
The traditional way to do this is by using Performance Monitor to check the status of the
memory counters for "available bytes" and "pages/sec," the logical disk counters for "% disk time"
on the drive that holds pagefile.sys, and Server "pool nonpaged failures" as well as "pool paged
failures." A simpler, straightforward, and graphic base tool I often use is a utility called
MemTurbo, which is designed to recover unused system memory when the machine hits a certain
threshold. The GUI is similar to Task Manager and easy to use. With Memturbo, you can monitor
memory usage in real time to see how your system reacts throughout the day.
Sizing your server is a little different. There are a number of factors to consider including
number of concurrent connections, application requirements, server functions, etc. The minimum
amount of memory I would use for any server is 512MB, and then add memory from there based on
vendor recommendations. It's a bit dated, but there's a great book excerpt from "Tuning and Sizing
NT Server" available on Technet at: http://www.microsoft.com/technet/archive/winntas/maintain/instant.mspx.
Also see my memory guide for reference: Learning
Guide: Troubleshooting computer memory.
This was first published in July 2005