Hardware manual

Group Administration Group monitoring
15–32
Figure 15-3: Performance Monitor- Select a Color Dialog Box
Changing the data collection values
Click Preferences to change:
• The time interval between data points. The default is 1 second, and the
maximum is 60 seconds. You can
choose from a list of predefined intervals (1, 5, 10, 30, and 60) or enter any integer value between 1 and 60; for
example, 45.
• The number of data points to save. The default is 100
and th
e maximum is 1000. You can choose from a list of
predefined values (100, 250, 500, or 1000) or enter any integer value between 100 and 1000; for example, 300.
As you choose different values for the interval and number of
data points to save, the dialog box shows you the
total amount of time you can save with that combination of values; for example, using an interval of 60 seconds
and saving 300 data points, you can store up to 5 hours of statistics.
Click
OK to save your changes. The changes take effect immediately; you do not have to stop and restart polling.
Additional monitoring tools
To enhance your view of PS Series group operation, you can use additional tools:
• SAN HeadQuarters – Enables you to monitor multiple PS Series groups from a single graphi
cal interface. It
gathers and formats performance data and other vital group information. Analyzing the data might help you
improve performance and more effectively allocate group resources.
Visit the customer support website for more information ab
out SAN HeadQuarters.
• Multiple Router Traffic Grapher (MRTG) – A supplement to the Pe
rformance Monitor, enables you to monitor
the I/O activity, latency, and throughput of volumes and members.
For more information on using MRTG, see the CLI Reference manu
al.