As superuser (su -), type:
# /opt/SUNWsymon/sbin/es-uninst |
where /opt is the directory where Sun Management Center 3.6 is installed. Substitute the name of the actual directory if it is different on your system.
Select System Reliability Manager from the list of add-on software, and click Next.
Indicate whether to preserve the data files, and click Next.
The System Reliability Manager packages and configuration files are removed. If you chose not to preserve the data files, they are removed as well.