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Viewing Usage Statistics on External Volumes in External Volume
Groups
Performance Monitor monitors external volumes in external volume groups
and lets you view the usage statistics of external volumes. Performance
Monitor also displays a graph illustrating changes in the usage statistics of
external volumes within that period.
You can view the usage statistics about external volumes only when you select
shortrange for the storing period of statistics.
To view usage statistics about external volumes in an external volume
group:
1. Ensure that the Performance Management 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 folder opens and a list of external volume groups is displayed below
the folder.
5. Select the desired external volume group.
The list on the right displays usage statistics about external volumes in the
specified external volume group. The displayed statistics are the average
and the maximum usage rates for the period specified in the From and To
boxes.
Notes:
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
Apply, 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
Performance Management Window, Physical Tab).
6. To display a graph illustrating changes in usage rate for external volumes,
select the desired external volumes in the list and then click Draw.
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Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User's Guide
Performance Monitor Operations
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