SMS modifications

SMS automates and centralizes storage management. It automatically assigns service requirements and attributes to data when that data is created. SMS configuration services validate, for example, the recording technology value that ISMF specifies in data class definitions.

MEDIA9 and MEDIA10 will only be supported from z/OS DFSMS V1R5 and above.

SMS will support a new recording technology EFMT2, 2 new media types MEDIA9 and MEDIA10, and a new segmentation format option called 'Performance Segmentation' in Dataclass. This segmentation format option field is only applicable to media type 5, and the new media type 9. Performance Segmentation is mutually exclusive to the existing performance scaling option which will be verified during SMS validation process. Additionally, the Performance Scaling will also be supported for the new media type 9.

In an IBM tape library environment (automated or manual), use ISMF to specify the:

EFMT1 recording technology attribute
EFMT2 recording technology attribute
Media type of MEDIA5, MEDIA6, MEDIA7, MEDIA8, MEDIA9, or MEDIA10
Performance scaling or performance segmentation option, if the media type is MEDIA5 or MEDIA9. Media types MEDIA6, MEDIA7, MEDIA8, and MEDIA10 are not scalable or segmentable.

The performance scaling or performance segmentation options can also be specified and used outside of the system-managed tape library environment.

In support of the 3592 Model E05 tape drives, SMS configuration services are updated to validate the recording technology value and the media type value.