HP XP P9000 Performance Advisor Software v5.5 User Guide (T1789-96337, Februrary 2013)

Table 40 Metrics and descriptions (continued)
DescriptionMetricMetric category
The total backend tracks
loaded in non-sequential
ACP Pair Non-sequential
Read Tracks  Backend
mode from the specified
ACP Pair.
The total backend tracks
destaged in sequential mode
from the specified ACP Pair.
ACP Pair Write Tracks 
Backend
The Overall backend
transfers for the selected
ACP pair.
ACP Pair Total Tracks 
Backend
Total backend tracks
associated with a ThP pool.
ThP Pool Backend Tracks
An aggregate of all the
backend transfers as a result
of I/Os occurring on every
VVol in a ThP pool.
The average read response
time value for an LDEV is
The average read response
time of all the LDEVs created
Average Read ResponseResponse Time Metrics
obtained from dividing thein a specified RAID group
accumulated response time ofover the entire data
collection interval. all the I/Os by the total
number of I/Os on that LDEV.
Average read response
time = Accumulated
response time of all
I/Os / total number
of I/Os
The maximum read response
time of all the LDEV created
Maximum Read Response
in a specified RAID group
over the last 30 seconds of
the collection interval.
The average write response
time value for an LDEV is
The average write response
time of all the LDEVs created
Average Write Response
obtained from dividing thein a specified RAID group
accumulated response time ofover the entire data
collection interval. all the I/Os by the total
number of I/Os on that LDEV.
Average write
response time =
Accumulated response
time of all I/Os /
total number of I/Os
The maximum write response
time of all the LDEVs created
Maximum Write Response
in a specified RAID group in
the last 30 seconds of the
collection interval.
The average write response
time value for a host group is
The average write response
time of all the LDEVs created
Average Write Response
Time
obtained by taking thein a specified RAID group
average of the average writefor the given Host group
response time of all the LDEVSover the entire data
collection interval. associated with the given host
group.
404 Metric Category, metrics, and descriptions