NAME

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

SYNOPSIS

       /usr/lib/sysstat/sa1 [ --boot | 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/sysstat 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.

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/sysstat/sa1 1 1 -S DISK

   Debian note
       The Debian sysstat package has already placed  such  an  entry  in  your  system  crontab.
       Please refer to the /usr/share/doc/sysstat/README.Debian file for details.

FILES

       /var/log/sysstat/saDD
       /var/log/sysstat/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)

       http://pagesperso-orange.fr/sebastien.godard/