HP XP P9000 Performance Advisor Software User Manual

Page 455

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Description

Metric

Metric category

Single CLPR, data ac-
cessed or the reads on a
single CLPR.

CLPR Read Hits

Cache IO Metric

Applicable only for XP disk
arrays.
Example – ACP Pair BH
has B as the left ACP card
and H as the right ACP
card.

•

The total utilization of
the ACP pair.

•

In a thin provisioning
environment where an
ACP pair is associ-
ated with a ThP pool,
the ACP Pair Util Total
metric provides the
ACP utilization due to
the I/O cache miss
(where frontend I/Os
occurring on a ThP
pool are received at
the array backend). In
this case, ACP utiliza-
tion also correlates to
the utilization of RAID
groups associated
with a ThP pool.

ACP Pair Util Total

Utilization Metrics

The utilization of the MP#
on the ACP pair.

•

ACP Pair Util MP0

•

ACP Pair Util MP1

•

ACP Pair Util MP2

•

ACP Pair Util MP3

•

ACP Pair Util MP4

•

ACP Pair Util MP5

•

ACP Pair Util MP6

•

ACP Pair Util MP7

The total utilization of the
left ACP in the ACP pair.

ACP Left Util Total

The utilization of the MP#
on the left ACP.

•

ACP Left Util MP0

•

ACP Left Util MP1

•

ACP Left Util MP2

•

ACP Left Util MP3

•

ACP Left Util MP4

•

ACP Left Util MP5

•

ACP Left Util MP6

•

ACP Left Util MP7

•

The total utilization of the
right ACP in the ACP
pair.

ACP Right Util Total

HP StorageWorks P9000 Performance Advisor Software User Guide

455

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