HP XP Array Manager Software User Manual
Page 73
The items displayed in the list are a little different depending on the selection of the storing period:
longrange or shortrange. The write pending rates are displayed by both selection, but usage
statistics of the cache memory are displayed only when you select shortrange.
4.
In the tree, select the Cache folder.
The list on the right displays the write pending rates. If you select shortrange for the storing
period of statistics, the list also displays usage statistics about the cache memory.
Average and maximum usage rates for the period specified in the From and To boxes are dis-
played.
If you change the date and time in the From and To boxes and then click Apply, Performance
Monitor recalculates the write pending rates and usage statistics about the cache memory, 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 “
5.
To display a graph that illustrates changes in the write pending rate or in usage statistics about
the cache memory, select the row of the write pending rate in the list and then click Draw.
The range of monitoring and the gathering interval affects the time period represented by a
graduation on the horizontal axis.
6.
When you select shortrange for the storing period of statistics, you can select the item to be illus-
trated in the graph from the list at the upper right on the graph.
Select Write Pending to view the write pending rate graph and select Usage to view that of the
usage statistics for cache memory. The graph will be updated without clicking Draw. You can
also select the item to be displayed before clicking Draw 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:
XP24000/XP20000 Performance Monitor User Guide
73