Viewing ldev data – HP XP Performance Advisor Software User Manual
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Viewing LDEV data
HP
XP7 Performance Advisor displays the following data on the Array View LDEV screen for
all
the LDEVs that belong to an XP or an XP7 disk array:
•
The performance data of all the LDEVs
•
The data on associated components, such as the following:
The summary for individual RAID groups, which includes:
◦
–
RAID level
–
Associated ACP pair
–
Disk mech details
–
Associated drive type and RPM rate
◦
The I/Os and MB/s data for individual CHIP ports
For an XP disk array, in addition to the above-mentioned, the total utilization of the individual ACP
pairs is also displayed.
For an P9500/XP7 disk array, in addition to the above-mentioned, the MP blade IDs are also
displayed for those MP blades that have LDEVs currently assigned to them.
To view the above-mentioned data for an XP or XP7 disk array, select LDEV in the component
selection tree for the corresponding XP or XP7 disk array.
IMPORTANT:
Since, the CHIP/CHA and ACP/DKA MPs are moved to the MP blades in the
P9500/XP7 disk arrays, their MP utilization metrics are not applicable for the P9500/XP7 disk
arrays. For more information, see
“Viewing MP blade utilization for P9500/XP7 disk arrays”
.
You can query the existing performance data in HP XP7 Performance Advisor for a particular date
and time stamp to view the corresponding point in time data for all the LDEVs. By default, the data
displayed is for the last performance data collection time stamp and sorted in a descending order.
The sorting of data is based on the average read response time of individual LDEVs. You can query
the LDEV data for a different date and time stamp and also sort the data based on a different sort
type. For more information, see
.
For more information on viewing data for LDEVs in a custom group, see
The following image shows the LDEV data for 53036, which belongs to the P9500 Disk Array
type.
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Viewing XP and XP7 disk array components