Manual Pages for UNIX Operating System command usage for man sa1

System Administration Commands                            sar(1M)



NAME
     sar, sa1, sa2, sadc - system activity report package

SYNOPSIS
     /usr/lib/sa/sadc [t n] [ofile]


     /usr/lib/sa/sa1 [t n]


     /usr/lib/sa/sa2 [-aAbcdgkmpqruvwy] [-e time] [-f filename]
          [-i sec] [-s time]


DESCRIPTION
     System activity data can be accessed at the special  request
     of  a  user  (see  sar(1))  and  automatically, on a routine
     basis, as described  here.  The  operating  system  contains
     several  counters  that  are  incremented  as various system
     actions occur. These include counters for  CPU  utilization,
     buffer  usage,  disk  and  tape  I/O  activity,  TTY  device
     activity, switching and system-call  activity,  file-access,
     queue  activity,  inter-process  communications, and paging.
     For more general system statistics, use iostat(1M),  sar(1),
     or vmstat(1M).


     sadc and two shell procedures, sa1 and sa2, are used to sam-
     ple, save, and process this data.


     sadc, the data collector, samples system data n times,  with
     an  interval  of  t  seconds  between samples, and writes in
     binary format to ofile or to standard output.  The  sampling
     interval  t should be greater than 5 seconds; otherwise, the
     activity of sadc itself may affect the sample. If  t  and  n
     are  omitted, a special record is written. This facility can
     be used at system boot time, when booting  to  a  multi-user
     state,  to  mark the time at which the counters restart from
     zero.  For  example,  when  accounting   is   enabled,   the
     svc:/system/sar:default  service  writes the restart mark to
     the daily data file using the command entry:

       su sys -c "/usr/lib/sa/sadc /var/adm/sa/sa`date +%d`"




     The shell script sa1, a variant of sadc, is used to  collect
     and store data in the binary file /var/adm/sa/sadd, where dd
     is the current day. The arguments t and n cause  records  to
     be  written  n times at an interval of t seconds, or once if



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System Administration Commands                            sar(1M)



     omitted.       The        following        entries        in
     /var/spool/cron/crontabs/sys  will  produce records every 20
     minutes during working hours and hourly otherwise:

       0 * * * 0-6 /usr/lib/sa/sa1
       20,40 8-17 * * 1-5 /usr/lib/sa/sa1




     See crontab(1) for details.


     The shell script sa2, a  variant  of  sar,  writes  a  daily
     report  in  the file /var/adm/sa/sardd. See the OPTIONS sec-
     tion in sar(1) for an explanation of  the  various  options.
     The  following  entry  in  /var/spool/cron/crontabs/sys will
     report important activities hourly during the working day:

       5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A



FILES
     /tmp/sa.adrfl

         address file


     /var/adm/sa/sadd

         daily data file


     /var/adm/sa/sardd

         daily report file


     /var/spool/cron/crontabs/sys

         used for performance collection


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:








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System Administration Commands                            sar(1M)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | system/accounting/legacy    |
    |_____________________________|_____________________________|


SEE ALSO
     crontab(1),   sar(1),   svcs(1),    timex(1),    iostat(1M),
     svcadm(1M), vmstat(1M), attributes(5), smf(5)


NOTES
     The sar service is managed by the service management  facil-
     ity, smf(5), under the service identifier:

       svc:/system/sar




     Administrative actions on this service,  such  as  enabling,
     disabling,  or  requesting  restart,  can be performed using
     svcadm(1M). The service's status can be  queried  using  the
     svcs(1) command.






























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