Viewing Usage Statistics About External Volume Groups - HP XP20000 User Manual

XP Auto LUN (For more information on using XP Auto LUN, see the HP StorageWorks
XP24000/XP20000 Auto LUN Software User Guide)
XP Snapshot
The Ave. (Total) column displays the average percentage of processing of the above programs in
the specified period.
The Max. column displays the maximum percentage of processing of the above programs in the
specified period.
For details on the above programs, see their respective user's guides.
CLPR: This column indicates numbers and names of CLPRs corresponding to each parity group
which the volume belongs to, in the format CLPR-number:CLPR-name. For details on CLPRs, see HP
StorageWorks XP24000/XP20000 Disk/Cache Partition User Guide.

Viewing Usage Statistics about External Volume Groups

Performance Monitor monitors external volume groups and displays statistics about the usage statistics
of external volume groups in a specified period. Performance Monitor also displays a graph that
illustrates changes in the usage statistics of external volume groups within that period.
You can view the usage statistics about external volume groups only when you select shortrange for
the storing period of statistics.
To view usage statistics about external volume groups:
1. Ensure that the Auto LUN window is displayed.
2. In the tree, click the Physical tab.
3. In the list above the tree, select shortrange for the storing period of statistics.
If you select longrange, no statistics appears in the list.
4. In the tree, select the External Group folder.
The list on the right displays usage statistics about external volume groups. The displayed statistics
are the usage statistics for the period specified in the From and To boxes.
NOTE:
The list displays up to a maximum of 4,096 resources at a time. If the number of resources
exceeds 4,096, use Previous and Next to display the remaining resources.
If you change the date and time in the From and To boxes and then click the Apply button,
Performance Monitor recalculates usage rates and updates information in the list. To change
the date and time in From and To boxes, use the arrow buttons and the sliders (for details,
see "Auto LUN Window, Physical
5. To display a graph that illustrates changes in usage statistics for external volume groups, select
the desired external volume groups in the list and then click Draw.
NOTE:
The range of monitoring and the gathering interval affects the time period represented by a
graduation on the horizontal axis.
66 Performance Monitor Operations
Tab" on page 31).