392 DS8800 Performance Monitoring and Tuning
sar -f /var/adm/sa/sadd (dd is the day in which you are interested)
You can also focus on a certain period, for example, 8 a.m. to 5:15 p.m. with this command:
sar -s 8:00 -e 17:15 -f /var/adm/sa/sadd
Remember, sa2 removes the data collection files that are over a week old as scheduled in
cron.
You can save sar information to view later with the commands:
sar -A -o data.file interval count > /dev/null & (SAR data saved to data.file)
sar -f data.file (Read SAR information back from saved file)
All data is captured in binary form and saved to a file (data.file). The data can then be
selectively displayed with the sar command by using the -f option.
sar summary
The sar tool helps you to tell quickly if a system ...