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Chapter 3 Operations of Performance Monitoring Function
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Operations with the Archiver (iSMprfarc) command for summarizing statistic information will be described below.
(1) Files to be summarized and determination of the summarizing method
Before executing Archiver, specify the following items:
Files to be summarized
Specify statistic information files you want to summarize. You can directly specify files as summarizing
objects, or you can specify files in a specified directory in a specific period as summarizing objects.
The names of the statistic information files to be summarized must be in accordance with the naming
convention for statistic information files. For naming conditions and rules of statistic information files, refer
to 1.5.3.1 "Accumulating Statistic Information".
[Naming Convention for Statistic Information Files]
<YYYY><MM><DD><NN-N>.psl
<YYYY><MM><DD><NN-N>.psa
<YYYY><MM><NN-N>.psa
<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 method (primary summarizing, secondary summarizing, or direct secondary summarizing) of statistic
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.
(2) Executing Archiver
Specify files, directory and option according to the specified contents and execute Archiver. Archiver operates
regardless of the iSM server process. Archiver can be executed in any directory. The names of the
summarized files output by Archiver are automatically created in accordance with the naming convention for
statistic information files.
Examples of execution of Archiver will be provided below.
Example: Example of summarizing when a file is specified
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Assume that the statistic information history file (20020401NECStorage4100.psl) on April 1, 2002
regarding "NECStorage4100" is located in the "/opt/iSMsvr/etc/mon" directory. To summarize this
file and output a primary summarized file to the current directory, enter the following command and
execute it.
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(History file)
(Primary summarized file)
(Secondary summarized file)
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