Question on db2licd command for applying FP6

[M Kwan]

Hi,

I am still new to DB2 and need to apply V8 FP6 on AIX platform.

#1) In the readme, it indicated that prior to install, I have run the
following commands for each instance:
su -iname
db2 force applications all
db2 terminate
db2stop
db2licd -end # run at each physical node
exit

My DB2 server has 3 db2 instances. Do I need to run "db2licd -end" for
each instance under the instance ID? I understand db2licd is a licensing
daemon.
Will only running once under any of the instance ID is sufficient?

I am not sure what it means by run at each physical node.

#2) also currently when I do "ps -ef |grep db2licd", I did not see any
process running. Is this how it should be?

Please help..Thanks.