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HP XP Performance Advisor Software User Manual

Page 394

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Table 40 Metrics and descriptions (continued)

Description

Metric

Metric category

The frontend I/Os for
random write requests that

Total Random Write -
Frontend

result in cache hits, for all
the snapshots in a snapshot
pool.

The frontend I/Os for
sequential I/Os for all the

Total Sequential IO -
Frontend

snapshots in a snapshot
pool.

The frontend I/Os for
sequential read I/Os for all

Total Sequential Reads -
Frontend

the snapshots in a snapshot
pool.

The frontend I/Os for
sequential read requests that

Total Sequential Reads
Cache Hits - Frontend

result in cache hits, for all
the snapshots in a snapshot
pool.

The frontend I/Os for
sequential read I/Os for all

Total Sequential Writes -
Frontend

the snapshots in a snapshot
pool.

Pool Level

The average IOPH against
pool capacity metric

Average IOPH per capacity

displays data for all the
monitoring cycles available
for the duration selected by
the user.

NOTE:

This metric is

disabled in the Alarm
screen.

Total number of I/Os on a
pool tier compared against

IOPS per Tier

the used pages in a pool tier
for the last collected
monitoring cycle.

NOTE:

This metric is

disabled in the Alarm
screen.

Virtual Volume Level

The virtual volume average
I/O per hour compared

Average IOPH per capacity

against the virtual volume
used capacity for the last
collected monitoring cycle.

NOTE:

This metric is

disabled in the Alarm
screen.

Tier Level

Total Number of I/Os on a
pool tier compared against

IOPS per Tier

the used pages in a pool tier
for last collected monitoring
cycle.

394 Metric Category, metrics, and descriptions

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