Header for OFFLOAD device data. Total length of the data for a device is accounted for by the prefix section which follows this header structure. The prefix section will also identify the type of data returned in this header. For OFFLOAD devices the data (section) type is JDTYOFLD. The following sections could be returned within this header:

• Prefix section (always first) Common prefix section (JDCXPREF)
• OFFLOAD device common section OFFLOAD device common section (JDOCOFLD)
• OFFLOAD device JES2 section OFFLOAD device JES2 section (JDO2OFLD)

Data for devices related to that OFFLOAD device is chained to this header using JDOHDEVC pointer. Number of devices in the chain is in JDOHDEV#. Data returned for each related device will have its own unique header structure. Devices related to OFFLOAD device include:

• Job transmitters (see Job transmitter data header (JDXHJXMT))
• Job receivers (see Job receiver data header (JDBHJRCV))
• SYSOUT transmitters (see SYSOUT transmitter data header (JDYHSXMT))
• SYSOUT receivers (see SYSOUT receiver device data header (JDSHSRCV))