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FIGURE 20-2 The ExMon tool showing client latency data
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and performance of an Exchange server is included with the Performance Monitor The downside is that it is not terribly intuitive For an administrator new to Windows and Exchange, the performance objects and counters are cryptic at best To understand the results of counters, even the ones that seem to make sense, requires a depth of knowledge of the interdependencies of the resources being monitored so that you can distinguish between a symptom and the source of a problem Fortunately, Microsoft provides built-in descriptions of almost all the performance object counters And the application groups such as the Microsoft Exchange team publish helpful documentation on monitoring the performance of their applications using the Performance Monitor The Exchange team at Microsoft also created a number of Exchange-specific performance objects that can also be used to monitor numerous aspects of your Exchange organization Although the standard Performance Monitor tool can be opened by typing perfmonmsc, a version of PerfMon is included with Exchange 2007 in the BIN directory called ExchPrfmsc In Figure 20-3, you can see how the System Monitor in Performance Monitor was customized for Exchange 2007 Although the Performance Console is best known for its ability to show real-time performance information, the most important monitoring function it performs is benchmarking Performance benchmarking is the process of gathering performance data that can be used for analyzing performance at a later point in time
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Simple Mail Transfer Protocol (SMTP) utilizes a folder at the file system level called the Queue directory for processing mail items Exchange 2007 optimizes the SMTP protocol by using Microsoft s Extensible Storage Engine (ESE) database in place of flat files for the mail queue It is not possible to view the content of the mail Queue directory with a simple text editor Because administrators need the ability to be able to monitor queues and at times clean out messages in a queue, Microsoft has developed tools that expose the contents of the queues in all their releases of Exchange Exchange 2003 had a very refined version of the Queue Viewer Due to the changes in the SMTP transport stack and administrative tools in Exchange 2007, the Queue Viewer had to be changed The new Queue Viewer is show in Figure 20-4
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PART VI
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FIGURE 20-3
ExchPrf custom console
Exchange 2007 Queue Viewer uses MMC 30 and like the Exchange Management Console (EMC) its information is derived from the execution of cmdlets in the Exchange Management Shell (EMS) Information about each item in the queues can also be viewed in the Queue Viewer, as shown in Figure 20-5
FIGURE 20-4
Exchange 2007 Queue Viewer
20:
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FIGURE 20-5
Item properties in the Queue Viewer
By default, you can use the Queue Viewer to sort and filter queues based on the following information: Identity, Subject, Message ID, From Address, Status, Size, Message Source Name, Source IP, SCL Rating, Date Received, Expiration Time, Last Error, Queue ID, Recipients It is also possible to manage the queues by suspending a queue or a message in the queue When necessary, it is possible to delete items in a queue
Exchange Best Practices Analyzer
The Exchange Best Practices Analyzer (ExBPA) is a multifaceted tool Because of its versatility, we have covered its benefits in previous chapters in this book In the context
PART VI
Part VI:
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of this chapter, the ExBPA is being used as a monitoring tool The ExBPA allows you to run the following scans: Health Check Checks for errors, warnings, nondefault configurations, recent changes, and other configuration information The Health/Performance Check Performs the Health Check scan and then proceeds to sample a range of Exchange Server performance counters over a two-hour period of time Permission Check Allows you to test just the credentials you will be using to run the scan Connectivity Test Allows you to test your connections and permissions before performing a Health Check scan Baseline Performs a comparison between the current values for various Exchange parameters with administratively defined baseline values Reports on the differences Exchange 2007 Readiness Check Scans the existing Active Directory and Exchange organization to identify issues that need to be addressed before joining an Exchange 2007 server to the organization The Health/Performance Check scan can be used to monitor your organization with limited configuration requirements The Baseline scan, on the other hand, may require additional work in order to specify the values you want to compare A number of default values are configured in the ExBPAconfigxml file But this file doesn t contain default source values for all the baseline options You can define the servers you want to scan and edit the source values for the baseline options with the ExBPA tool, prior to running the Baseline scan, as shown in Figure 20-6 Due to the resources required to run a scan, it is recommended that you use a dedicated management machine from which to run the ExBPA tool Expect the management machine to use 50 75% of its processor during a scan Due to the large amount of information being requested from a domain controller, you may see the processor usage on the domain controller used by ExBPA go up to 50% utilization during the scan The good news is that even if you run a scan during the middle of the day, it will have nominal effects on the actual Exchange servers you are scanning as long as you do not install and run the ExBPA on an Exchange server
FIGURE 20-6
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