If the library has outboard policy management support enabled, the UXELOPM indicator is set on in the CBRUXEPL parameter list to indicate that the library is enabled for outboard policy management support.

If a volume has nondefault policy names assigned to it, as may be the case with an imported logical volume, the library policy names are passed to the entry exit in the UXELMOPM fields. The UXEVOPM indicator is set on to indicate that at least one of these fields has a nondefault policy name. Otherwise, by default, blanks are passed in these fields. See Cartridge entry installation exit parameter list (CBRUXEPL) for more information on these new fields in the parameter list.

If a volume being entered has a TCDB record, the UXEGROUP field will contain the TCDB storage group, unless explicitly specified through the import list (indicated by bit flag UXEVSGSP). If the UXEVSGSP indicator is set, and the use attribute is PRIVATE, the UXEGROUP field contains the value specified in UXELMSG. This ensures that any changes through the import list are reflected in the TCDB record. UXELMSG will contain the storage group policy name that exists in the library if a nondefault policy name exists or blanks, by default. For a private volume, if the TCDB storage storage group is blanks and the library has a nondefault policy name, the UXELMSG value is also assigned to UXEGROUP.

If a volume being entered does not have a TCDB record, and the library has a nondefault policy name, the UXEGROUP field contains the value specified in UXELMSG. This ensures if the entry exit makes no changes, or changes the use attribute to PRIVATE, that the TCDB storage group field and the library manager policy names are the same.