HP XP P9000 Performance Advisor Software v6.0 User Guide

Viewing LDEV data
HP XP P9000 Performance Advisor displays the following data on the Array View LDEV screen for
all the LDEVs that belong to an XP or a P9000 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 a P9000 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 a P9000 disk array, select LDEV in the component
selection tree for the corresponding XP or P9000 disk array.
IMPORTANT: Since, the CHIP/CHA and ACP/DKA MPs are moved to the MP blades in the
P9000 disk arrays, their MP utilization metrics are not applicable for the P9000 disk arrays. For
more information, see “Viewing MP blade utilization for P9000 disk arrays” (page 190).
You can query the existing performance data in HP XP P9000 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 Querying data.
For more information on viewing data for LDEVs in a custom group, see “Viewing LDEV data in
custom groups” (page 228).
The following image shows the LDEV data for 53036, which belongs to the P9500 Disk Array
type.
Viewing LDEV data 213