HP XP Array Manager Software - Manual (Page 35)

Description Item
The list displays statistics about parity group usage, processor usage, and so on.
The list displays statistics for up to a maximum of 4,096 resources at a time. If the number
of resources exceeds 4,096, use the Previous and Next buttons to display the remaining
resources. If you select connected parity groups in the tree, the list displays usage
statistics for all the connected parity groups.
If you select the Array Control Processor (DKA) folder in the tree, the list displays a list
of disk adapters (see
Figure 7 ), so that you are able to confirm whether each disk
adapter is located in Cluster-1 or Cluster-2. For example, if the Cluster-1 column displays
0 and the Cluster-2 column displays a hyphen, the disk adapter is located in Cluster-1.
When you select the parity group icon and the list displays the icon of concatenated
parity groups, the list displays only the ID of the parity group at the top of the
concatenated parity groups.
For details on the list contents, see “
Monitoring Resources in the Storage
System ” on page 61.
List
This area displays the page numbers in N/M format, where N indicates the number of
the current page and M indicates the total number of pages.
Use the following buttons to change pages of the list:
• Previous: Click to view the previous 4,096 resources.
• Next: Click to view the next 4,096 resources.
Page
Starts XP Auto LUN if that program is enabled and longrange is specified for the display
range. Use XP Auto LUN to optimize hard disk drive performance. For more information
on using XP Auto LUN, see the HP StorageWorks XP24000/XP20000 Auto LUN Software
User Guide.
Plan
Displays a line graph that illustrates changes in usage statistics. The graph can display
up to eight lines simultaneously. Select an item in the list, and then click Draw.
Draw
The line graph illustrates changes in usage statistics. The vertical axis indicates the usage
rates (in percentage). The horizontal axis indicates dates and/or times.
If you select connected parity groups in the tree, the graph displays changes in usage
statistics for all the connected parity groups.
When you illustrate a graph of the following information with specifying shortrange,
you can select an item to be displayed in the graph from the list on the upper-right of
the graph:
• Information for external volume groups or external volumes
• Information for cache memory (write pending rates or usage statistics about cache
memory)
In addition, when you display information for external volume groups or external volumes,
you can select the highest value of the Y-axis (the vertical axis) of the graph at the Chart
Y Axis Rate list on the upper left of the graph.
Figure 8 shows the lists to select an item displayed in the graph and to select the highest
value of the Y-axis.
If you select an item to be displayed from the list before clicking Draw, the graph shows
the selected item. After drawing, if you select another item from the list, the graph will
be updated without reclicking Draw. Depending the values of the selected item, Arrange
the graph by changing the highest value of the Y-axis.
Line graph
XP24000/XP20000 Performance Monitor User Guide 35