NEC Storage Performance Monitor/Optimizer User Manual page 176

Explanation of display items
Display item
disk array name
rank no
First column
Second column
date, time
iops
trrate
av.len
av.resp
w.ratio
busy
Appendix C Report Format of Performance Report Editor
Nickname of the disk array
RANK number
An asterisk is displayed immediately after changes have been made to the
disk array configuration or the accumulation of statistic information has been
restarted.
A greater-than sign '>' is displayed when a logical disk has been transferred
to the RANK from another RANK by the performance optimization function.
Date and time when statistic information was collected.
I/O density (number of times/second) in the calculating period
External transfer rate (megabytes/second) in the calculating period
External average transfer length (kilobytes) in the calculating period
External average response ( millisecond ) in the calculating period
Ratio of Write I/O (percent) in the calculating period
Busy Ratio of the RANK
'***.**' is displayed if the information of the busy ratio does not exist.
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Explanation