help with a script to have monthly sar reports Post: 302611623

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Top Forums Shell Programming and Scripting help with a script to have monthly sar reports Post 302611623 by methyl on Friday 23rd of March 2012 08:00:55 AM

03-23-2012

Registered User

Please post what Operating System and version you have and what Shell you are using.

Please post the "sa1" and "sa2" entries from you crontab and any special changes you might have made such that these scripts keep more than a rolling month's worth of data. On most systems "sa1" and "sa2" are scripts which you can read. Beware that the "sa" files can get very large if you snapshot too frequently. Have a look at you "sa" directory and see what range of data you have available.
Check check and double check that your "sa" scripts are set up correctly and that one "sa" file only contains one day's data.

Always have in mind why you are producing the report(s), what the output report(s) should look like, and what you are going to analyse.

We once found that a simple analysis of the day-by-day CPU usage average for one key system was meaningless because it was dominated by an overnight backup. Restricting the analysis to core hours was more interesting but a lot more work.

methyl

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LEARN ABOUT OSX

sa2

sa2(8)							    BSD System Manager's Manual 						    sa2(8)

NAME

     sa2 -- Generate a system activity daily report file.

SYNOPSIS

     /usr/lib/sa/sa2 [-dgpu] [-n mode] [-e time] [-f filename] [-i seconds] [-s time]

DESCRIPTION

     The sa2 command is a shell script used to invoke the system activity reporter sar for purposes of generating the standard default daily
     report file.  The report file generated is, /var/log/sa/sardd where the dd represents the current day of the month.  The sa2 options are the
     same as those documented in sar(1).

     When sa2 runs, it will also remove data and report files, found in /var/log/sa, that are more than one week old.

     The sa2 command is intended to be started by cron.

EXAMPLE CRON ENTRY

     # Starting at 8am collect system activity records
     # every 20 minutes for 12 hours
     # 20 minutes = 1200 seconds
     # 12 hours with 3 samples each hour = 36 loops

     0 8 * * 1-5 /usr/lib/sa/sa1 1200 36

     # After the 12 hour period,
     # collect a system activity report

     30 20 * * 1-5 /usr/lib/sa/sa2 -A

FILES

     /var/log/sa/sardd	Default daily report file.
     /var/log/sa/sadd	Default daily data file.

			dd are digits that represent the day of the month.

SEE ALSO

     crontab(1), fs_usage(1), netstat(1), sar(1), sc_usage(1), top(1), vm_stat(1), crontab(5), iostat(8), sa1(8), sadc(8)

Mac OS X							    Jul 25 2003 							  Mac OS X