HP XP Continuous Access Software User Manual
Page 152
The usage monitor graph plots user-selected I/O statistics (up to 65 data points) on an x-y graph.
The x-axis displays time. The y-axis displays the number of I/Os during the last sampling period.
The legend (right side of the graph) indicates data being displayed. A value on the y-axis varies
according to the maximum value of the statistical data displayed. If the value on the y-axis exceeds
10,000,000, the value is displayed in exponential notation (for example,
1E7 = 1x10
7
= 10,000,000; 2E8 = 2x10
8
= 200,000,000).
1.
Ensure that usage monitoring is running. The usage monitor graph is only displayed when
monitoring is on.
2.
Right-click the graph area on the Usage Operations pane, and click Display Item. The Display
Item pane (
) appears.
3.
In Select LU, do one of the following:
•
To display I/O statistics for all LDEVs in the array, select Subsystem.
•
To display I/O statistics for a specific journal group, select JNL Group, and enter a journal
group number (00-FF).
NOTE:
If you specify an unused journal group, the graph is not displayed.
•
To display I/O statistics for a specific LU, select Device, select a port (CL1-A to CLG-R),
and enter the G-ID (00-FE) and LUN (00-3FF).
NOTE:
If you specify the unmounted LU, the graph is not displayed.
NOTE:
When a graph displays, the CU and LDEV numbers appear above the graph.
If the logical volume is an external LU, # appears after the LDEV number. For more
information about external LUs, see the HP StorageWorks External Storage XP user guide.
4.
In the Monitor Data box, select the I/O statistics data you want to display on the graph. You
must select at least one box.
describes I/O statistics data.
152
Monitoring remote copy operations