XPWatch and XPSketch Reference guide for HP XP P9000 Performance Advisor

Table 21 LDEV performance metrics (continued)

DescriptionUnitPerformance

metrics

Average Read Response timemsr_ms

Average Write Response timemsw_ms

Maximum of (Maximum Read Response time and Maximum Write

Response time)

msms^

Maximum Read Response timemsr_ms^

Maximum Write Response timemsw_ms^

Front-end I/O Density [IOPS/GB]numberFeD

Back-end/Front-end I/O rationumberBe/Fe

Average LDEV I/O utilization%LD%

Back-end I/OnumberBe

RAID group performance metrics

Table 22 describes the RAID group performance metrics.

NOTE: The RAID group performance metrics of a LDEV is not available if it is configured as a

THP, smart pool, or external volume.

Table 22 RAID group performance metrics

DescriptionUnitPerformance

metrics

RAID group identifiernumberRG

LDEV identifiernumberLDEV

Average Front-end I/OsnumberAvgIO

Average Write percentage%Wr%

Average Sequential I/O percentage%Seq%

Average Read Cache Hit percentage%r_H%

Average I/O sizeKB/IOkB/IO

Average ThroughputKB/sKB/s

Average I/O Response time within back-end arraymsms