HP XP P9000 Performance Advisor Software User Manual
Page 460
Description
Metric
Metric category
The average write
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 write
response time =
Accumulated
response time of
all I/Os / total
number of I/Os
The average write
response time of all the
LDEVs created in a
specified RAID group over
the entire data collection
interval.
Average Write Response
The maximum write
response time of all the
LDEVs created in a
specified RAID group in
the last 30 seconds of the
collection interval.
Maximum Write Re-
sponse
The average write re-
sponse time value for a
host group is obtained by
taking the average of the
average write response
time of all the LDEVS asso-
ciated with the given host
group.
The average write
response time of all the
LDEVs created in a
specified RAID group for
the given Host group over
the entire data collection
interval.
Average Write Response
Time
The maximum write re-
sponse time value for a
host group is obtained
after taking the maximum
value among all maximum
write response time of all
the LDEVS associated with
the given host group.
The maximum write
response time of all the
LDEVs created in a
specified RAID group for
the given Host group in
the last 30 seconds of the
collection interval.
Maximum Write Re-
sponse Time
The average read re-
sponse time value for a
host group is obtained
after taking the average of
the average read response
time of all the LDEVS asso-
ciated with the given host
group.
The average read
response time of all the
LDEVs created in a
specified RAID group for
the given Host group over
the entire data collection
interval.
Average Read Response
Time
The maximum read re-
sponse time value for a
host group is obtained
after taking the maximum
value among all maximum
read response time of all
the LDEVS associated with
the given host group.
The maximum read
response time of all the
LDEVs created in a
specified RAID group for
the given Host group over
the last 30 seconds of the
collection interval.
Maximum Read Response
Time
Metric Category, metrics, and descriptions
460