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Port performance metrics, Ldev performance metrics, Raid group performance metrics – HP XP Performance Advisor Software User Manual

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Table 18

describes the Port performance metrics.

Table 18 Port performance metrics

Description

Performance Metrics

Average I/O rate of the last measurement interval

CurIO

Minimal I/O rate of the last 60 seconds

MinIO

Maximum I/O rate of the last 60 seconds

MaxIO

Average I/O rate of the last 60 seconds

AvgIO

Calculate average I/O size (=avgKB / avgI/O)

KB/IO

Average throughput of the last measurement interval

CurKB

Minimal throughput of the last 60 seconds

MinKB

Maximum throughput of the last 60 seconds

MaxKB

Average throughput of the last 60 seconds

AvgKB

Table 19

describes the LDEV performance metrics.

Table 19 LDEV performance metrics

Description

Performance Metrics

Average Front-end I/Os

IOPS (TotalRd + TotalWr)

Average Write percentage

Write Ratio %

Average Sequential I/O percentage

Sequential IO ratio %

Average Read Cache Hit percentage

Read hits % for LDEV

Average Throughput

Throughput [KB/s]

Average I/O Response Time

IO response time [ms]

Back-end / Front-end I/O ratio

Back-end to Front-end IO ratio [%]

Average LDEV I/O utilization

LDEV Utilization % for LDEV

Back-end I/O

Cache lines staged/destaged [1/s]

Table 20

describes the RAID Group performance metrics.

Table 20 RAID Group performance metrics

Description

Performance Metrics

Average Front-end I/Os

IOPS (TotalRd + TotalWr)

Average Write percentage

Write Ratio %

Average Sequential I/O percentage

Sequential IO ratio %

Average Read Cache Hit percentage

Read hits % for LDEV

XPWatch and XPSketch Reference Guide

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