If you attempt to create a resource pool with a name that starts with any character other than an alphabetic, creation fails.
If the host does not appear to be respond after a failure, you might need to restart the host:
Become superuser on the host.
% su -
Stop and restart the host.
# /opt/SUNWsymon/sbin/es-stop -a
# /opt/SUNWsymon/sbin/es-start -a
Valid characters are the following:
Alphabetic (A–Z, a–z)
Workaround: Begin all resource pool names with an alphabetic character.