5-14
Performance
Monitor
Operations
Hitachi Universal Storage Platform V/VM Hitachi Performance Manager User’s Guide
Viewing Usage Statistics on External Volume Groups
Performance Monitor monitors external volume groups and lets you view the
usage statistics of external volume groups in a specified period. Performance
Monitor also displays a graph illustrating 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
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 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.
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).
5.
To display a graph illustrating 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.
Figure 5-5
Example of Usage Statistics of an External Volume Group
Usages Displayed in the List
