The following message occurs when issuing the 'Pick' command (PF6) for all of the DC's (Data Collectors) that reside locally to the User Interface:
DBG55095E DC not available,(RC=132).
These same Data Collectors can be addressed remotely from other LPARS, just not from the same LPAR as where the DC's are running.
The cause of the 'DBG55095E DC not available,(RC=132)' message in this specific scenerio was due to a bad ACBNAME parameter definition in the VTAM UI APPLs defined to the local LPAR.
The five RAF UI APPL definitions for the given LPAR all had ACBNAME=DBG004.
As stated in the RAFUIAPPL .SOURCE library member, the ACBNAME must start with DBG001 and increase consecutively with each definition (EG. DBG001-DBG009).
Correcting the ACBNAME parameter for the local RAF UI APPL definitions to reflect DBG001-DBG005, and then deactivating / activating the RAF UI APPLS resolved the
'DBG55095E DC not available,(RC=132)' error message for all of the local DC's, allowing for the 'PICK' (PF6) command to show them as 'Available'.