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sa1(8) BSD System Manager's Manual sa1(8)
sa1 -- Generate a system activity daily data file.
/usr/lib/sa/sa1 [t n]
The sa1 command is a shell script used to invoke the system activity data collector, sadc.
The binary sample data is collected at intervals t seconds apart, in a loop n times. The
binary sample data is written to the standard daily data file, /var/log/sa/sadd where the dd
represents the current day of the month.
sa1 is intended to be started by cron.
EXAMPLE CRON ENTRY
# Starting at 8am collect system activity records
# every 20 minutes for 12 hours
# 20 minutes = 1200 seconds
# 12 hours with 3 samples each hour = 36 loops
0 8 * * 1-5 /usr/lib/sa/sa1 1200 36
# After the 12 hour period,
# collect a system activity report
30 20 * * 1-5 /usr/lib/sa/sa2 -A
/var/log/sa/sadd Default daily activity file that holds the binary sampling data. dd are
digits that represent the day of the month.
sa2(8), sadc(8), sar(1), iostat(8), vm_stat(1), netstat(1), top(1), sc_usage(1),
fs_usage(1), crontab(1), crontab(5)
Mac OS X Jul 25 2003 Mac OS X
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