#ident "@(#)README 1.2 92/07/14 SMI" /* SVr4.0 1.9 */
README 1.9 of 5/8/89
Instruction of daily report generation:
1. The line
su sys -c "/usr/lib/sa/sadc /var/adm/sa/sa`date +%d`"
should be included in the file /etc/rc2.d/S21perf
to be run by /sbin/rc2 in state 2.
sadc is executed only for the first transition into state 2.
This entry causes a special record to be written on the
daily data file when UNIX restarts.
2. The execution of shell script
sa1 [t n]
causes data collection program to write system activity
counters n times at every t-second interval on data file.
If t and n are not specified, it writes data once.
According to your installation's requirement, enter
entries of executing sa1 [t n] in /var/spool/cron/crontabs/sys
to collect system activity data.
For example, entries
0 8-17 * * 1-5 su sys -c "/usr/lib/sa/sa1 1200 3 &" and
0 18-23 * * 1-5 su sys -c "/usr/lib/sa/sa1 &"
cause data collection program to be activated at every hour
on the hour from 8:00 to 23:00 on weekdays.
Moreover, It writes data on data file 3 times at every 20
minutes interval from 8:00 to 17:00 and once at other times.
3. Shell procedure sa2 will invoke sar command to generate
the daily report from the data file. Its usage is
sa2 [-options] [-s hh:mm] [-e hh:mm] [-i ss]
where -s and -e specify the report starting and ending times
respectively, -i specifies the report data interval in seconds.
If they are not specified, all data from the data file are to
be reported. -options are report options, see manual page
sar.1 for description.
Make an entry to execute sa2 in /var/spool/cron/crontabs.
For instance, entry
5 18 * * 1-5 su adm -c "/usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 3600
-ubd &"
causes the invocation of sar command at 18:05. It generates
the daily report that includes the hourly cpu utilization,
buffer usage and disk and tape activities from 8:00 to 18:01.
