When can 'hasys -nodeid' fail?

Dear All,

We are running VCS Engine version 6.1.0.000 and need to use 'hasys -nodeid'  to  get info about the node.

So in what scenario can this command fail  ?

Also in VCS  6.1 . , the man page info for this command states that it will display the nodeid  value for the corresponding system if the nodeid is  supplied whereas in older versions it states that it will set the supplied nodeid .

Can anyone confirm the behaviour when the nodeid is supplied as well  please ?

Thanks in advance.