Real-time metrics and descriptions – HP XP P9000 Performance Advisor Software User Manual
Page 408
Table 41 Metrics and descriptions (continued)
Description
Metric
Metric category
associated with the given host
group.
The maximum read response
time value for a host group is
The maximum read response
time of all the LDEVs created
Maximum Read Response
Time
obtained after taking the
in a specified RAID group
maximum value among all
for the given Host group
maximum read response time
over the last 30 seconds of
the collection interval.
of all the LDEVS associated
with the given host group.
Real-time metrics and descriptions
“Real-time metrics and descriptions” (page 408)
provides the real-time metrics and their descriptions.
Table 42 Real-time metrics definitions
Definitions
Real-time metrics
Average Front End writes/Average Front EndTotal IO
Avg write ratio
Average FE Sequential IO/ Avareage FE total IO
Avg seq IO ratio
Average Read I/Os found in the Cache
Avg Read hits
Average read/write I/O response time
Avg IO response Time
Average Read response time
Avg Read response time
Average write response time
Avg write response
Maximum FE read/write response time
Max IO response time
Maximum FE read response time
Max read response time
Maximum FE write response time
Max write response time
Read MB share (%) out of the total MB for the selected host
group
Read/Write MB Ratio [%] frontend
Read IO share (%) out of total IO for the selected host group
Read/Write IO Ratio [%] frontend
Total IO missed of all the LDEVs created in a specified RAID
group for the given Host group over the entire data collection
interval
Total IO Miss FrontEnd
Total FE (Sum of reads and write) I/Os
Total IO per second
Total FE (Sum of reads and write) I/Os
Total throughput kb per second
Total backend transfers vs Front end IO ratio
Total backend to frontend IO
Total backend read percentage
Total cache lines staged percentage
Total backend writes
Total cache lines destaged
Total backend random read percentage
Total cache lines random staged percentage
Total backend sequential read percentage
Total cache lines seq staged percentage
IO size
Total KB per IO
IO size
Total random IOPS
IO size
Total random read hits
IO size
Total random read hit IOPS
408 Metric Category, metrics, and descriptions