Monitoring and Tuning Your Server

Monitor Settings and Relevant Counters

Typically you use the Physical Disk counters to watch for spikes in the number of disk reads when the server is busy. If you have enough RAM, most connections will result in cache hits unless, of course, you have a database on the same server and clients are making dissimilar queries, which precludes caching.

If you don’t have anything that is obviously disk-intensive on your server, but you see lots of disk activity anyway, you should check RAM use immediately, to make sure you have enough memory.