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HP XP Performance Advisor Software User Manual

Page 220

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Table 21 Components and metrics in LDEV Column Settings list (continued)

Description

Screen elements

The maximum read response time, in millisecond, for the
LDEV.

Max Read Resp (msec) - valid for last 30 secs

The maximum write response time, in millisecond, for the
particular LDEV.

Max Write Resp (msec) - valid for last 30 secs

The RAID group to which the LDEV belongs.

RG

The random frontend reads throughput in MB/s for the
LDEV.

Random MB Reads

Frontend

The random frontend writes throughput in MB/s for the
LDEV.

Random MB Writes

Frontend

The random frontend I/O reads.

Random Reads

Frontend

The random frontend I/O read cache hit values.

Random Read Cache Hits

Frontend

The random frontend I/O write cache hit values.

Random Write Cache Hits

Frontend

The random frontend I/O read write values.

Random Writes

Frontend

The sequential frontend I/O read cache hit values.

Sequential Read Cache Hits

Frontend

The sequential frontend I/O read values.

Sequential Reads

Frontend

The sequential frontend I/O write values.

Sequential Writes

Frontend

The sequential frontend reads throughput in MB/s for the
LDEV.

Sequential MB Reads

Frontend

The sequential frontend writes throughput in MB/s for the
LDEV.

Sequential MB Writes

Frontend

The sequential frontend write cache hit values in per
second.

Sequential Write Cache Hits

Frontend

The identification number of the subsystem.

SS ID

The SLPR group ID.

NOTE:

SLPR does not exist in the P9000 disk arrays. So,

the SLPR group ID is displayed only for the XP disk arrays.

SLPR

The LUN associated with the given LDEV.

Target LUN

The volume group identification name if the device is
associated with a volume group. HP XP P9000 Performance

Vol. Group

Advisor reports volume groups from LVM (an HP brand)
and VXVM (a Veritas brand).

NOTE:

The E-LDEV, Ext-LUN, E-Port(s), E-Seq, Jnl Group, and Vol. Group are available for selection
only if they are configured in the selected XP or P9000 disk array.

The following metrics are not applicable for the XP or the P9000 continuous access journal
pool LDEVs. NA is displayed:

Response Time Metric category: Maximum Write Response and Average Write Response

Frontend IO Metric category: Random Write Cache Hits, Random Writes, Sequential
Write Cache Hits, and Sequential Writes

Frontend MB Metric category: Random MB Writes and Sequential MB Writes

220 Viewing XP and P9000 disk array components

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