Key label 1 specification - Key = '8023'

DALKYL1 specifies the label for the key encrypting key used by the key manager. The key encrypting key is used to encrypt the data (encryption) key.

When you code DALKYL1, # must be one, LEN must be 1 to 64, and PARM contains the key label in EBCDIC. You must also include the DALKYC1 text unit.

Code the DALKYL1 text unit to do either of the following tasks: Specification of the key labels does not by itself enable encryption. Encryption must be enabled by a data class that specifies an encryption format, for example EEFMT2. For complete documentation on using tape encryption, see z/OS DFSMS Software Support for IBM System Storage TS1140, TS1130, and TS1120 Tape Drives (3592).
Example: To specify a key label 1 of "LABELQ1.LABELQ2.LABELQ3", code:
KEY    #     LEN   PARM
8023   0001  0017  D3C1C2C5D3D8F14BD3C1C2C5D3D8F24BD3C1C2C5D3D8F3