This is really a BIG issue for us right now, and I already have an open case for it, just wondering if anyone has ever gotten this error using sacmd to enable a PeopleSoft Adapter:
TES SA Command Console (Version 6.1.0.267).
SACmd>agent -C MODIFY -n HRDEV-PSUNX -e Y
TES_003008:The specified port [null:null] is already in use. Completed at 09/01/2013 11:46 PM
I get this errors as well even then I run the command outside of Tidal directly in the Unix prompt.
The disable seem to work well enough. I use the persist parm.