HP XP Array Manager Software - Manual (Page 44)

Figure 12 The Port-LUN tab of the Auto LUN Window
.
When the Port-LUN tab is active, the Auto LUN window contains the following information:
Description Item
Current monitoring status:
• Enable: Performance Monitor is monitoring the storage system.
• Disable: The system is not being monitored.
Monitoring Switch
Current interval of collecting statistics.
• If the number of CUs to be monitored is 64 or less, the interval value is between 1
and 15 minutes. For example, if 1 min. is displayed, the information obtained every
one minute is updated in the list and the graph.
• If 65 or more CUs are monitored, the statistics are updated every 5, 10, or 15
minutes.
Gathering Interval
• Select the storing period of statistics (monitoring data). The statistics displayed in the
Port-LUN tab are stored only in short range, therefore, shortrange appears in this
list and you cannot change it. The range of monitoring data that can be displayed
in the window is between 8 hours and 15 days depending on the gathering interval.
For details on the types of storing period of statistics, see “
Understanding Statistical
Storage Ranges ” on page 16. For details on the relationship between collection in-
terval and the storing period of the statistics, see “ Monitoring Options Win-
dow ” on page 52.
• Select the type of statistics to view in the window. To view I/O rates, select IOPS
(I/Os per second) from the list. To view transfer rates, select MB/s (megabytes per
second) from the list.
Monitoring Data
Using the Performance Monitor Windows 44