System-wide DEVSUP
xx parmlib member options
are included to control and manage media type selection for:
- Stand-alone environment:
- ENFORCE_DC_MEDIA=ALLMEDIATY ensures data class media policies
are enforced for all stand-alone, non-specific mounts.
- ENFORCE_DC_MEDIA=MEDIA5PLUS ensures data class media policies
are enforced for all stand-alone, non-specific mounts for any of the
four 3592 tape cartridge media types.
Note: The ENFORCE_DC_MEDIA option can be used in conjunction
with the tape management systems pooling support to ensure that the
correct media type is mounted. Before setting this option, determine
how data class is used in the stand-alone environment to ensure that
a data class with the correct media type specification is selected
and that any tape management system pool assigned to the allocation
request matches the media type specified in the assigned data class.
- Manual Tape Library (MTL) non-specific volume requests:
- MTL_NO_DC_WORM_OK indicates that the installation is managing
WORM media allocations through the tape management system pooling
support, instead of data class. This option results in OPEN accepting
MTL WORM scratch mounts when no media type is identified via data
class.
- Automatic Tape Library (ATL) partitioning:
- MEDIA5=xxxx
- MEDIA6=xxxx
- MEDIA7=xxxx
- MEDIA8=xxxx
where xxxx is a 4-digit hexadecimal category
code.