LCS external services changes

LCS External Services supports the applicable encryption-capable TS1120 tape drive media types, MEDIA5, MEDIA6, MEDIA7, MEDIA8, MEDIA9, and MEDIA10, and the recording technologies, EFMT1, EFMT2, and EEFMT2, for these functions:

Change use attribute
Query volume residence
Test volume eligibility
Eject a volume
Manual cartridge entry

Note:

The MEDIA5, MEDIA6, MEDIA7, and MEDIA8 media types are valid with the EFMT1, EFMT2, and EEFMT2 recording technologies.
The MEDIA9 and MEDIA10 media types are valid only with the EFMT2 and EEFMT2 recording technologies.
In general, in an environment sharing the TCDB at different software levels, if a lower-level system without appropriate support attempts to perform one of the CBRXLCS functions using a volume that has EEFMT2 recording technology, the request fails with existing return code LCSFAIL (12) and existing reason code LCSFNSUP (310).
Coexistence support is provided at z/OS V1R4 and above to enable, during job processing, a scratch volume that is previously written with an up-level recording format to be used by a lower-level system that does not recognize the recording format. Because there is only one scratch pool per media type and that scratch pool can be used across systems at different levels of support, this support ignores the scratch volume's previous recording format and enables the scratch volume to be used on the lower-level system.