ENSEMBLE start option


   .-ENSEMBLE--=--NO----------.   
>>-+--------------------------+--------------------------------><
   |                      (1) |   
   '-ENSEMBLE--=--+-NO--+-----'   
                  '-YES-'

Notes:

The ENSEMBLE setting is used to either permit or deny connectivity to the intraensemble data network (IEDN) and the intranode management network (INMN) by allowing or denying activation of OSX and OSM interfaces.

When the IBM® zEnterprise® System (zEnterprise) node is configured at the Hardware Management Console (HMC) as a member of an ensemble, then the ENSEMBLE start option determines whether this specific z/OS® image should be included as a member of the ensemble. When the zEnterprise node is not configured at the HMC as a member of an ensemble, this start option has no meaning. See z/OS Communications Server: IP Configuration Guide for details about configuring a zEnterprise node to participate in an ensemble.

ENSEMBLE=NO

Specifies that this z/OS Communications Server does not permit connectivity to either the intraensemble data network (IEDN) or the intranode management network (INMN) by denying activation of OSX and OSM interfaces. The default value for the ENSEMBLE start option is NO.

ENSEMBLE=YES

Specifies that this z/OS Communications Server permits connectivity to the IEDN and to the INMN. Access to these networks is through OSA-Express3 or later features that are configured with the following CHPID types:

OSX (IEDN)
OSM (INMN)

When the zEnterprise node is configured at the HMC as a member of an ensemble, you can change the value of the ENSEMBLE start option with the MODIFY VTAMOPTS command while VTAM® is running.

Result: The ENSEMBLE setting is used to either permit or deny activation attempts for OSX and OSM interfaces. Modifying the ENSEMBLE start option from YES to NO does not cause z/OS Communications Server to take action on any active OSX or OSM interfaces.