HP XP Array Manager Software - Manual (Page 59)

6. When you select shortrange for the storing period of statistics, you can select the item
to be illustrated in the graph from the drop-down list at the upper right on the graph
( Figure 27 on page 59).
Select Write Pending to illustrate the graph of the write pending rate, and select Usage to
illustrate that of usage statistics of the cache memory. The graph will be updated without
reselecting the Draw button. You can also select the item to be displayed before selecting the
Draw button at first.
Figure 27 Selecting an Item to be Displayed in the Graph (Shortrange)
Examples of write pending rate displayed in the lists are shown below:
When selecting longrange for storing period of statistics:
When selecting shortrange for storing period of statistics:
Figure 28 Examples of Write Pending Rate and Cache Usage Rate Displayed
The list displays the following items:
• : When the green checkmark icon is displayed on the left of the write pending rate, the
graph illustrates changes in the write pending rate and usage statistics about the cache memory.
• CLPR: This column indicates numbers and names of cache logical partitions (CLPRs) in the format
CLPR-number:CLPR-name. For details on CLPRs, see HP StorageWorks XP24000 Disk/Cache
Partition User’s Guide.
• Usage: This item is displayed only when you select shortrange for the storing period of statistics.
• The
Ave. (Total) column displays the average usage rate of the cache in the specified period.
• The Max. column displays the maximum usage rate of the cache in the specified period.
• Write Pending:
XP24000 Performance Monitor User's Guide 59