HP XP Performance Advisor Software - Manual (Page 110)

Description Component levels
in such cases appears as in the appropriate
category, if there are no other components that are over
utilized or nearing the set threshold limits in that
category.
NOTE: You can sort the component records in the Statistics section based on their current state.
The critically utilized components are displayed first followed by those components whose usage
is nearing or within the set threshold limits.
For the Frontend, Cache, Backend, or MP Blade category, select components in the Statistics section
and view their usage graphs for the associated metrics. You can view the maximum X busiest
components associated with a port, RAID group, or an MP blade in the Components Information
section. For more information, see
“Dashboard busiest consumers” (page 112) .
Dashboard statistics and threshold metrics
The following table lists the metrics that are displayed for the Frontend, Cache, Backend, and the
MP Blade categories in the Statistics section.
IMPORTANT:
•
The Avg CHA MP Util (%) and the Avg DKA Pair Util (%) metrics are applicable only for the
XP disk arrays.
•
The
Avg MP Blade Util (%) metric is applicable only for the XP7 disk arrays.
Description Metrics Category
Avg Port IOPS, Avg Port MBPS, and
Avg CHA MP Util (%) Frontend Avg
Port IOPS, Avg Port MBPS:
Average
of the I/Os and MB/s usage
on
individual ports in the
XP/
XP7 disk array frontend.
Avg CHA MP Util (%): Overall
utilization of the individual MPs on each
installed CHA.
Cache utilization and write pending
data. Cache Usage (%), Write Pending (%) Cache
In addition, the Side File Usage (%)
data and the Cache Size (total in MB)
are also displayed.
RG Seq Reads (IOPS) (Avg Seq
Reads), RG NonSeq Reads (IOPS) Backend
(Avg NonSeq Reads), RG Writes
(IOPS) (Avg Writes), and Avg RG Util
(%), Avg DKA Pair Util (%), and
Combined Backend Transfer (IOPS)
RG
Seq Reads (IOPS) (Avg Seq Reads),
RG
NonSeq Reads (IOPS) (Avg NonSeq
Reads),
RG Writes (IOPS) (Avg Writes):
Average
of the frontend sequential and
random
I/Os on an individual RAID
group
in the XP/XP7 disk array
backend.
Combined Backend Transfers (IOPS),
which is derived as follows:
•
If any of the physical LDEVs from a
RAID group is configured in a ThP
pool, the sum of the backend
transfer on all the V-Vols in that pool
will be shown as combined backend
transfer for that RAID group.
• If any of the physical LDEVs from a
RAID group is configured in multiple
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Monitoring performance of XP and XP7 disk arrays