Estimated lesson time: 55 minutes in .NET

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Estimated lesson time: 55 minutes
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Ian McLean Monitoring your server hardware and the performance of your system is not especially difficult. You have got lots of tools to do it with. What you monitor and when you monitor it depends on your equipment and business requirements, but many examples of good monitoring practice exist and can be found on the Internet. You can automate many monitoring tasks so that they happen in the background while you are busy doing something else. What is difficult is finding the time to inspect, analyze, and document the results. You need to do this on a regular basis to build up a history of the stress
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Lesson 2: Monitoring System Performance
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on your server resources. If an alert occurs and you have identified a problem that you need to resolve, you ll find the time to deal with the situation. But if you need to check and record that the values returned in some significant counters, while still acceptable, indicate that traffic and resource pressure is building up in your system over time, you might decide to leave the task until later. After all, if you skip the occasional check on your performance counters, who is to know In the meantime, 40 new employees start work on the following Monday and need mailbox accounts, and your chief executive officer has opened Microsoft Word and is complaining that he cannot see his e-mail messages (again). You need to find the time to check your monitor results. If you do not, your organization s network will continue to work fine until one day it falls over completely. A good administrator solves problems before they occur and certainly before users notice them. When management is budgeting for equipment refresh, it will not allocate money for upgrades to the equipment you are responsible for unless you have the figures to justify this expenditure. Spend some of your valuable time monitoring your system, recording the results, and documenting your reports. In the long run, it is your lifeline.
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MORE INFO
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Best monitoring practice
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An Internet search for monitoring best practice or best practice in monitoring will give you access to a lot of advice and further information. However, a good place to start is http://technet2.microsoft.com/windowsserver/en/library/b3d458a8-7d62-4f2a-80bbc16e75994b1d1033.mspx mfr=true.
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Monitoring Hardware
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If you suspect a hardware failure of a system component, you can typically access a troubleshooter associated with the Server help files that assists you in diagnosing and repairing the problem. For example, if you had printing problems, you would access the Printing Troubleshooter, shown in Figure 9-24. Sometimes the problem is caused by a corrupt or out-of-date driver or by an unsuitable driver being downloaded. In this case, you can access a device from Device Driver on the Hardware tab of the System tool in Control Panel, check whether the device is working properly, and, if necessary, update or roll back the driver. If you choose to update the diver, ensure that you have an Internet connection because new versions
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9
Monitoring
of device drivers are often available on the Microsoft Update Web site. Figure 9-25 shows the Driver tab of the Properties dialog box for an Ethernet controller.
Figure 9-24
Printing Troubleshooter
Figure 9-25
Options for working with drivers
Lesson 2: Monitoring System Performance
However, hardware failures are rare, although they can happen. Typically, performance problems are caused by stressed resources. Your processor, for example, has not failed but is frequently running at over 99 percent usage for extended periods of time, and server performance is consequently very poor. Microsoft provides the Performance tools, System Monitor, and Performance Logs and Alerts, to check stress on resources, create performance baselines, and alert you if a counter associated with a resource exceeds or falls below a predefined threshold value. You can access the Exchange Server Performance Monitor from Exchange Management Console or Performance from the Administrative Tools menu. Essentially, both procedures access the same set of tools.
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