Chapter 3 Operations of Performance Monitoring Function
I-60
statistic information files (For details, refer to Part I “Performance Monitoring Function”, 1.5.3.1 “Accumulating
Statistic Information” of this manual).
[Naming Convention for Statistic Information Files]
<YYYY><MM><DD><NN-N>.psl
(History
file)
<YYYY><MM><DD><NN-N>.psa
(Primary summarized file)
<YYYY><MM><NN-N>.psa
(Secondary
summarized
file)
<YYYY> indicates year (4 digits), <MM> indicates month (2 digits), <DD> indicates day (2 digits), and <NN-N>
indicates the disk array name.
Summarizing method
Select a summarizing method (primary summarizing, secondary summarizing, or direct secondary summarizing) of
static information files.
If a summarizing period is not an integral multiple of the logging interval specified by an accumulation process,
summarizing is not performed evenly. For such cases as I/O count applicable to that condition, refer to statistic
information items with no fluctuation by changing period of summarizing, such as I/O density and transfer rate.
Next, summarize statistic information. Archiver provides the following two operation methods:
Operations on the “Performance Analysis Supporting Tool” screen
Select [Performance Analysis Supporting Tool] on [Start] menu to display the Performance Analysis Supporting
Tool screen. Specify the operations with [Archiver] tab on the Performance Analysis Supporting Tool screen to
execute summarizing.
Operations with the Archiver command
Specify an option in the iSMprfarc command and execute the command to perform a summarizing operation.
The two methods of operation will be described below.
(1) Operations on the "Performance Analysis Supporting Tool" screen
Select the [Archiver] tab on the Performance Analysis Supporting Tool screen, and enter parameters for
performing a summarizing operation. Screen images and operations will be described below.
