Format-1 and Format-8 DSCBs

[John P Kalinich]

Are these Format-1/8 DSCB fields used by any access method?
   | 90(X'5A')    | Binary       | 1     | DS1KEYL      | Key length ( 0 to
255).

+--------------+--------------+-------+--------------+-------------------------
   | 91(X'5B')    | Binary       | 2     | DS1RKP       | Relative key
position.

Regards,
John K