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HP XP P9000 Performance Advisor Software User Manual

Page 396

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Table 41 Metrics and descriptions (continued)

Description

Metric

Metric category

Out of the sum total of
frontend random read I/Os

RAID Group Random Reads
Cache Hits – Frontend

on all the LDEVs created in
a given RAID group, the
number of random reads
available in the cache.

The frontend random write
I/Os on all the LDEVs
created in a RAID group.

RAID Group Random Writes
– Frontend

The sum total of frontend
sequential I/Os on all the

RAID Group Total Sequential
IO – Frontend

LDEVs created in a RAID
group.

The frontend sequential read
I/Os on all the LDEVs
created in a RAID group.

RAID Group Sequential
Reads – Frontend

The number of sequential
frontend read I/Os serviced

RAID Group Sequential
Reads Cache Hits – Frontend

from the cache in terms of
the I/Os writes for a RAID
group.

The frontend sequential write
I/Os on all the LDEVs
created in a RAID group.

RAID Group Sequential
Writes – Frontend

Each ThP pool value is the
sum of all the LDEVs in the
ThP.

The cumulative frontend
I/Os over the entire
collection interval on

Total IO - Frontend

individual virtual volumes
defined in this pool.

The sum total of random
frontend I/Os on individual

Total Random IO - Frontend

Virtual volumes defined in
this pool.

The sum total of random
frontend read I/Os on

Total Random Reads -
Frontend

individual Virtual volumes
defined in this pool.

The sum total of random
frontend read I/Os on

Total Random Read Cache
Hits - Frontend

individual virtual volumes
defined in this pool, which
are serviced from the cache.

The sum total of random
frontend write I/Os on

Total Random Writes -
Frontend

individual virtual volumes
defined in this pool.

The sum total of sequential
frontend I/Os on individual

Total Sequential IO -
Frontend

virtual volumes defined in
this pool.

The sum total of sequential
frontend read I/Os on

Total Sequential Reads -
Frontend

individual virtual volumes
defined in this pool.

396 Metric Category, metrics, and descriptions

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