NEC Storage Performance Monitor/Optimizer User Manual page 31

(1) Extracting statistic information in the specified period
To extract statistic information in the specified period, specify the period in CSV Conversion Tool. To specify a
period, you can specify the extraction starting time and end time, or either one of them.
(i) Specifying the extraction starting time and end time
Statistic information from the extraction starting time to the extraction end time is extracted.
(ii) Specifying the extraction starting time only
Statistic information after the extraction starting time is extracted.
(iii) Specifying the extraction end time only
Statistic information before the extraction end time is extracted.
(2) Extracting statistic information regarding the specified component
To extract statistic information of the specified component of the disk array, specify the component of the disk array
in CSV Conversion Tool. The following components can be specified.
Host port
Disk port
Logical disk
Physical disk
RANK
(3) Extracting statistic information of the specified type
Statistic information can be generally categorized into the following types.
(i) Information regarding the number of inputs/outputs
This information contains the number of inputs/outputs, the maximum values of input/output density (IOPS) and
minimum values of input/output density.
(ii) Information regarding the response time of the I/O process
This information contains the average response time and the maximum response time.
(iii) Information regarding the Transfer Rate of the I/O process
This information contains Transfer Rate and the maximum and minimum values of Transfer Rate.
(iv) Information regarding the operating status of the devices
Operating time and maximum and minimum values of the operating time are included. A Busy Ratio and maximum
and minimum values of the Busy Ratio are included.
In (i) to (iv) above, to extract statistic information of the specified type, specify the type in CSV Conversion Tool.
(4) Extracting configuration information
There are the following types for configuration information of a disk array.
(i) Information regarding the disk array and configurations
Information regarding:
Disk array
Host port
Chapter 1 Overview of Performance Monitoring Function
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