HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

DescriptionMetricMetric category
The Overall backend
transfers for the selected
RAID group.
RAID Group Total Tracks
– Backend
The total backend tracks
loaded in sequential
mode from the specified
ACP Pair.
ACP Pair Sequential Read
Tracks – Backend
The total backend tracks
loaded in non-sequential
mode from the specified
ACP Pair.
ACP Pair Non-sequential
Read Tracks – Backend
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. 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 obtained 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
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