Wiki Category: Glossary of Message Variables

The message number inside an IRX0nnnI message that is issued by the REXX language environment, usually for syntax errors. The IRX messages are documented in the IBM manual z/OS TSO/E Messages in the section TSO/E terminal messages (IRX…).

The name of a member in a PDS or PDSE dataset.

A sequential number starting at 1 that identifies the layout of the MDB data in the buffer. The version of the data is compared with the version of the DSECT to determine if the DSECT has the correct layout.

A 2-byte, hexadecimal value that identifies the section type within an MDB buffer. The possible values are documented in the IEAVM105 macro and in the IBM manual z/OS MVS Data Areas in the section MDB Information.

The total byte length of an MDB buffer.

The address of an MDB buffer whose layout is mapped by the DSECT in macro IEAVM105.

Text label unique to each subroutine in MBRLST function program VNCRXF22 that describes the operation it is about to perform.

The maximum number of member-name report lines the MBRLST function will return: 10,000.

The DD name of a predefined file in the VNAC agent’s JCL that has one or more partitioned datasets allocated to it.

An 8-byte binary value, displayed as hexadecimal, that selects which bytes of the cart-value  will be matched with the carts of messages to determine if they match.