The structured field introducers shown in Table 1 provide return codes and reason codes in your output buffer.

The DFSMSrmm API issues the return and reason code structured field introducers only when the subcommand fails. Each return and reason code pair is grouped within the SYSRETC group. The FRC and FRS structured field introducers are used for return and reason codes that are returned from OAM. The RSNC and RTNC structured field introducers are used for return and reason codes that are from another system service.

When the DFSMSrmm API builds a SYSRETC group for an error reported by a system service, look for additional information that is available from system messages in places like the operator terminal, SYSTSPRT, job log, and SYSLOG data set.

Subcommands are described using standard DFSMSrmm abbreviations. For example, AV is for ADDVOLUME as shown in Table 1. The structured field introducer values are enclosed in single quotes (') to signify that they are 8-byte hexadecimal values. Two spaces are included in the IDs for readability.