HP P9000 Performance for Open and Mainframe Systems User Guide (AV400-96395, October 2011)

Throughput of storage system
Function
Total throughput is the sum of I/Os to LDEVs, parity groups or LUNs The read throughput is I/Os
to the disk per second when the file read processing is performed. The write throughput is I/Os to
the disk per second when the file write processing is performed.
Throughputs in the following modes can be displayed.
• Sequential access mode
• Random access mode
• Cache fast write (CFW) mode
• Total value in the above-mentioned mode
Storing period
Short-Range can be specified.
Selecting of monitoring objects
Select monitoring objects in Performance Objects: field. The combination of items is shown as
follows.
Item on right side of Monitor
Data: field
Item on left side of Monitor
Data: field
Item on right side of Object:
field
Item on left side of Object:
field
NoneThroughput (IOPS)NonePort
NoneThroughput (IOPS)WWNWWN
NoneThroughput (IOPS)Port
TotalTotal Throughput (IOPS)NoneLogical Device
Sequential
Random
CFW
TotalRead Throughput (IOPS)
Sequential
Random
CFW
TotalWrite Throughput (IOPS)
Sequential
Random
CFW
TotalTotal Throughput (IOPS)NoneParity Group
Sequential
Random
CFW
TotalRead Throughput (IOPS)
Sequential
Throughput of storage system 29