Preparations in the Data Center

• A special document of instructions must be prepared for the operators who perform the backup site printing. The document must include all of the steps that they must perform.
• A number of OFFLOADers can be defined to JES. It is most convenient to have one of the OFFLOADers already defined with all the required parameters. For a detailed description of the required OFFLOAD parameters, refer to the JES Operator’s Guide.
• Special consideration for the OFFLOAD selection criteria parameters must be taken depending on the chunking method used. This is to ensure that only Control-D bundles are transmitted to the OFFLOAD facility.
  • If not using the chunking mechanism, that is, if CHUNKSIZE is set to 0, the Control-D Printing monitor name (that is, CTDPRINT) must be specified as the job name that OFFLOAD must select from spool. The following command demonstrates how this may be specified to the OFFLOADer:

    $TOFFx,JOB=CTDPRINT,WS=(JOB)

    Note that the WS (Work Selection Criteria) parameter must also be updated. The x must be replaced with the OFFLOADer identification number.

  • If using the chunking mechanism, that is, if the value of CHUNKSIZE is greater than one, the logical printer destination (for example, U1001, as specified in CTDPARM) must be used as the destination selection criteria. The following command demonstrates how this may be specified to the OFFLOADer:

    $TOFFx,R=U1001,WS=(R)

    Note that the WS (Work Selection Criteria) parameter must also be updated. The x must be replaced with the OFFLOADer identification number.

• The AFP external printing characteristics must be available at the printing backup site data center. This can be made available in one of a number of ways:
  • Adding an additional step to the printing backup site procedure and copying the AFP external printing characteristics libraries onto tape or cartridge while transmitting the bundles to the OFFLOAD facility. Using a simple IEBCOPY utility (or equivalent) is sufficient.
  • Having a copy of the AFP external printing characteristics at the printing backup site data center at all times (that is, prepared in advance). This way, there is no need to copy the external printing characteristics libraries to the printing backup site data center while in the transmitting process.
• No special preparations need to be performed in Control-D.