To enable sar on Solaris 10:

# vi /var/spool/cron/crontabs/sys

Add these lines:

0,10,20,30,40,50 * * * * /usr/lib/sa/sa1
5 17 * * 1-5 /usr/lib/sa/sa2 -s 7:00 -e 17:01 -i 600 -A
# svcadm enable system/sar