HP XP P9000Watch and HP XP P9000Sketch Reference Guide for HP XP P9000 Performance Advisor v5.5 (T1789-96341, February 2013)

Table 12 P-VOL S-VOL Configuration (continued)
DescriptionConfiguration data
RAID classification for the RAID group.Raid
RAID type for the RAID group.Type
CLPR associated with the P-VOL or S-VOL.CLPR
Port that establishes communication between the host and
P-VOL or S-VOL.
Port
P-VOL S-VOL LDEV performance metrics
Table 13 (page 43) describes the performance metrics of P-VOLs and S-VOLs.
Table 13 P-VOL S-VOL LDEV performance metrics
DescriptionUnitPerformance metrics
Logical Device name.numberLDEV
RAID group identifier.numberRG
Average Front-end I/Os.numberAvgIO
Average Write percentage.%Wr%
Average Sequential I/O percentage.%Seq%
Average Read Cache Hit percentage.%r_H%
Average I/O Size.KB/IOKB/IO
Average Throughput.KB/sKB/s
Average I/O Response time.msms
Average Read Response time.msr_ms
Average Write Response time.msw_ms
Maximum of (Maximum Read Response
time and Maximum Write Response
time).
msms^
Maximum Read Response time.msr_ms^
Maximum Write Response time.msw_ms^
Front-end I/O Density [IOPS/GB].numberFeD
Back-end/Front-end I/O ratio.numberBe/Fe
Average LDEV I/O utilization.%LD%
Back-end I/O.numberBe
P-VOL S-VOL RAID Group performance metrics
Table 14 (page 44) describes the performance metrics of RAID groups to which the configured
P-VOLs and S-VOLs belong.
NOTE: The RAID group performance metrics of a LDEV is not available if it is configured as a
THP, smart pool, or external volume.
Understanding performance metrics 43