HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

DescriptionMetricMetric category
Total backend tracks
associated with a ThP
pool. An aggregate of all
the backend transfers as
a result of I/Os occurring
on every VVol in a ThP
pool.
ThP Pool Backend Tracks
The average read
response time value for an
LDEV is got from dividing
the accumulated response
time of 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 average read re-
sponse time of all the
LDEVs created in a spe-
cified RAID group over
the entire data collection
interval.
Average Read ResponseResponse Time Metrics
The maximum read re-
sponse time of all the
LDEVs created in a spe-
cified RAID group over
the last 30 seconds of the
collection interval.
Maximum Read Response
The average write
response time value for an
LDEV is got from dividing
the accumulated response
time of 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 average write re-
sponse time of all the
LDEVs created in a spe-
cified RAID group over
the entire data collection
interval.
Average Write Response
The maximum write re-
sponse time of all the
LDEVs created in a spe-
cified RAID group in the
last 30 seconds of the
collection interval.
Maximum Write Re-
sponse
Appendix F370