sa1

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/sysstat/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  com-
       mand collects and stores binary data in the current standard system ac-
       tivity 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 di-
       rectory.

       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 previ-
              ous 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 com-
              ment  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/sysstat/sa1 1 1 -S DISK

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

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

   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.De-
       bian 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)

       https://github.com/sysstat/sysstat
       http://pagesperso-orange.fr/sebastien.godard/

Linux                            NOVEMBER 2020                          SA1(8)