XPWatch and XPSketch Reference guide for HP XP P9000 Performance Advisor

Table 19 Host Group performance metrics
DescriptionUnitPerformance metrics
Host Group namestringHost Group
Average Front-end I/O per second over
the collection update interval, which is
set to a default value of 10 seconds.
numberAvg IO
Average throughput over the collection
update interval, which is set to a default
value of 10 seconds.
MB/sAvg MB
Port performance metrics
Table 20 describes the Port performance metrics.
Table 20 Port performance metrics
DescriptionUnitPerformance
metrics
Port namestringPort
Slot numberstringSlot
Type of the port, can be Fibre or FCoE (applicable only for P9000
disk arrays).
stringType
Minimal I/O rate of the last 60 secondsIO/sMinIO
Maximum I/O rate of the last 60 secondsIO/sMaxIO
Average I/O rate of the last 60 secondsIO/sAvgIO
Calculate average I/O size (=avg KB / avgIO)KB/IOKB/IO
Minimal throughput of the last 60 secondsKB/sMinKB
Maximum throughput of the last 60 secondsKB/sMaxKB
Average throughput of the last 60 secondsKB/sAvgKB
LDEV performance metrics
Table 21 describes the LDEV performance metrics.
Table 21 LDEV performance metrics
DescriptionUnitPerformance
metrics
Logical Device namenumberLDEV
RAID group identifiernumberRG
LDEV spread over number of DKAsnumberDKA
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 timemsms
Understanding performance metrics 49