Man Linux: Main Page and Category List


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


       /usr/lib/sysstat/sa1 [ --boot | interval count ]


       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  /var/log/sysstat/sadd
       file,  where  the  dd parameter indicates the current day. The interval
       and count parameters specify that the record should  be  written  count
       times  at  interval  seconds. If you do not specify these parameters, a
       single record is written.

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


       --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
              restarts from 0.


       To create a daily record of sar activities, place the  following  entry
       in your root or adm crontab file:

       0 8-18 * * 1-5 /usr/lib/sysstat/sa1 1200 3 &

   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.


              Indicate the daily data file, where the dd parameter is a number
              representing the day of the month.


       Sebastien Godard (sysstat <at>


       sar(1), sadc(8), sa2(8), sadf(1), isag(1)