SA1(8)			      Linux User's Manual			SA1(8)

NAME
       sa1 - Collect and store binary data in the system activity daily data
       file.


SYNOPSIS
       /usr/lib/sa/sa1 [ --boot | --rotate [ iso ] | --sleep | interval count
       ]


DESCRIPTION
       The sa1 command is a shell procedure variant of the sadc command and
       handles all of the flags and parameters of that command. The sa1
       command collects and stores binary data in the current standard system
       activity daily data file.

       The standard system activity daily data file is named saDD unless
       sadc's option -D is used, in which case its name is saYYYYMMDD, where
       YYYY stands for the current year, MM for the current month and DD for
       the current day. By default it is located in the /var/log/sa directory.

       The interval and count parameters specify that the record should be
       written count times at interval seconds. If no arguments are given to
       sa1 then a single record is written.

       The sa1 command is designed to be started automatically by the cron
       command.


OPTIONS
       --boot This option tells sa1 that the sadc command should be called
	      without specifying the interval and count parameters in order to
	      insert a dummy record, marking the time when the counters
	      restart from 0.

       --rotate [ iso ]
	      Use this option to tell sa1 to insert a record of statistics to
	      the standard saDD system activity daily data file of the
	      previous day.  This should be done shortly after midnight (on
	      day DD+1) in order to make sure that the data file covers the
	      whole day, including the last interval of time just before
	      midnight.	 Adding the iso keyword tells sa1 to use saYYYYMMDD
	      instead of saDD as the standard system activity daily data file
	      name.

       --sleep
	      This option tells sa1 that the sadc command should insert a
	      comment indicating that the system is entering or leaving sleep
	      mode (i.e. system suspend or hibernation).


EXAMPLE
       To collect data (including those from disks) every 10 minutes, place
       the following entry in your root crontab file:

       0,10,20,30,40,50 * * * * /usr/lib/sa/sa1 1 1 -S DISK

       To rotate current system activity daily data file, ensuring it is
       complete, place the following entry in your root crontab file:

       0 0 * * * /usr/lib/sa/sa1 --rotate


FILES
       /var/log/sa/saDD
       /var/log/sa/saYYYYMMDD
	      The standard system activity daily data files and their default
	      location.	 YYYY stands for the current year, MM for the current
	      month and DD for the current day.


AUTHOR
       Sebastien Godard (sysstat <at> orange.fr)


SEE ALSO
       sar(1), sadc(8), sa2(8), sadf(1), sysstat(5)

       https://github.com/sysstat/sysstat
       https://sysstat.github.io/

Linux				  AUGUST 2023				SA1(8)