HP XP P9000 Performance Advisor Software v6.0 User Guide

The following table describes the Performance View screen elements. The images shown are for
53036, which belongs to the P9500 Disk Array type.
DescriptionPerformance View screen elements
General group box
• DKC Time: Displays the time stamp
of the latest DKC performance data
collection
• RAID Group Time: Displays the time
stamp of the latest RAID group
performance data collection
• Port Time: Displays the time stamp
of the latest port performance data
collection
Click General to view the XP or the
P9000 disk array utilization summary.
For more information, see “Utilization
Summary” (page 180).
Displays the total I/Os and MB/s on
all the CHIP/CHA ports in the array
frontend. Click the Frontend Total Avg
group box to view the busiest frontend
LDEVs and ports. For more information,
Frontend Total Avg group box
see “10 busiest
LDEVs/Ports” (page 205).
Displays the total sequential reads,
non-sequential reads and writes for all
the RAID groups in the array backend.
The array backend is the sum of all the
ACP pair activities. In addition, the
combined backend transfer value is
displayed (only for XP24000 and
P9000 disk arrays), which is the sum
of backend transfers on all the ThP
pools.
Click the Array Backend Total group
box to view the busiest backend LDEVs
Backend Total Avg group box
and RAID groups. For more information,
see “10 busiest LDEVs/RAID
groups” (page 206).
Displays the cache usage, pending
writes, and the sidefile usage. For more
information, see “Cache usage
chart” (page 181).
Cache [Total - ### MB] group box
For an XP disk array, the Bus/Path Util
% group box displays the CHIP/CHA
utilization and the ACP pair utilization
for the cache memory bus and the
shared memory bus.
For a P9000 disk array, the Bus/Path
Util % group box for the CHIP/CHA
Bus/Path Util % group box
utilization and the ACP pair utilization
are displayed under the respective
Frontend Total Avg group box and the
Backend Total Avg group box.
Viewing performance summary 175