HP XP Performance Advisor Software - Manual (Page 49)

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 49