
Chapter 7. Windows 2000 performance tools 127
There are three ways to view the counters you select:
• Chart
This view displays values for performance counters in response to real-time
changes to load conditions.
• Histogram
This view displays values for performance counters in response to real-time
changes to load conditions and is useful for displaying peak values.
• Report
This view is used to display numeric values of multiple performance counters
simultaneously in real time. It is an instantaneous view of the performance
counters, so only current values are displayed.
New to Windows 2000 is the ability to integrate the functionality of System
Monitor into Microsoft Office applications such as Microsoft Word.
7.2 Performance Logs and Alerts
Performance Logs and Alerts shown in Figure 117 on page 127,allows you to
collect performance data automatically from local or remote systems. You can
view saved logs in System Monitor, or the data can be exported to a spreadsheet
or database.
Figure 117. Performance Logs and Alerts
Counters for monitoring disk activity are not activated by default. This is
because there is a modest increase in disk access time when these counters
are being used.
To enable disk counters type DISKPERF -Y.
Note: When DISKPERF -Y is executed physical drive data counters will be
activated (the same as using DISKPERF -YD). This command should be used if
the system is using hardware level RAID such as an IBM ServeRAID adapter.
When using Windows 2000 software level RAID and you need to activate
counters for logical drives and storage volumes use DISKPERF -YV.
Monitoring disk activity
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