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