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SYSIN01 DCB Parameters

CA XCOM Data Transport allows the user to specify DCB information for files created or replaced locally or remotely by using the RECFM, LRECL, and BLKSIZE SYSIN01 parameters.

Users enter the DCB information when creating a file on the local system. Under these circumstances, the DCB information for the file transmitted is the default DCB information. Specifying the RECFM, LRECL, and BLKSIZE parameters overrides the default DCB information. The DCB information (specifically the LRECL operand) determines the maximum record length that the PC reads when receiving a binary file from z/OS. The local system confirms the accuracy of the three parameters.

When a z/OS‑initiated receive is performed to a non‑z/OS partner, it is recommended that all DCB‑related parameters be coded in the SYSIN01 stream.