HP XP Array Manager Software User Manual
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have been moved by XP Auto LUN or XP Business Copy, or formatted by Virtual LVI or Open
Volume Management).
For more information on using XP Auto LUN, see the HP StorageWorks XP24000/XP20000
Auto LUN Software User Guide.
• If a plus mark (+) is displayed before a usage rate 0, such as +0, the usage rate is not com-
pletely 0 but less than 1.
5.
To display a graph that illustrates changes in usage rate for parity groups, select the desired
parity groups in the list and then click Draw button.
NOTE:
The range of monitoring and the gathering interval affects the time period represented by a
graduation on the horizontal axis.
Figure 20 Example of Parity Group Usage Rates Displayed in the List
.
NOTE:
•
It is possible that the usage rate for a parity group is not equal to the sum of the usage rate for
each volume in that parity group (see “
Viewing Usage Statistics about Volumes in Parity
” on page 63). This is because the Auto LUN window rounds off fractions below the
decimal point to the nearest whole number when displaying the usage rate for each volume.
•
If there is no volume in a parity group, hyphens (-) are displayed in place of performance statistics
on a parity group.
•
If the CU is not the monitoring target, all items in the row are displayed in italics. To monitor those
items, you must specify the CU as the monitoring target by using the Monitoring Option window.
The list displays the following items:
•
: When the green checkmark icon
is displayed to the left of a parity group, the graph illus-
trates changes in usage rate for the parity group.
•
PG: This column indicates IDs of parity groups.
•
RAID: This column indicates the RAID level (RAID-1, RAID-5, or RAID-6).
•
Protection: This column indicates the data protection level. SATA-W/V indicates that the write and
verify mode is set on the SATA drive. SATA-E indicates that the enhanced mode is set on the SATA
drive. The Standard indicates that the FC drive or flash drive is being used.
•
Drive Type: This column indicates types of HDDs (hard disk drives).
•
Usage:
• The Ave. (Total) column displays the average usage rate in the specified period.
• The Max. column displays the maximum usage rate in the specified period.
Performance Monitor Operations
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