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Chapter 21. Server Testing and Maintenance

Chapter 21. Server Testing and Maintenance

To get the most out of your servers, you need to know how well they are operating, what is “normal” behavior, and what to change when your server(s) don’t operate normally. Part of good management practice is the collection of performance data because with that data you can better tune your servers, plan for upgrades, and know when to upgrade your systems.

This chapter describes some of the tools and techniques you can use to test and monitor your servers. Modern operating systems and server applications provide some powerful tools that you can use to help in this area. Performance monitoring is accomplished by using small code snippets called counters that trap and measure when system events occur. Windows, UNIX, NetWare, and other server operating systems come with a large array of counters for measuring the resource consumption of key system components, such as processors, memory, disk space, and more. Beyond simple consumption, you can also get information about the efficiency of your system, speeds, throughputs, and more. When you install a server application, it may install additional counters for you to use. You can track the results of your performance measurements by using performance monitors or by executing a number of commands from the command line.


  

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