DYNMED

The media type which will be assigned in the Media Database (MDB) for dynamically-added volumes (see DYNVOL parameter above).

DSNMCHK

Determines whether Control‑M/Tape verifies that the data set name in the Media database matches the data set name specified in the JCL of the job.

• Mandatory

Valid values are:

• Y – Perform data set name verification. Default.
• N – Do not perform data set name verification.
• B – Do not perform data set name verification when accessing the volume as BLP in the JCL of the job.
• E - Do not perform data set name verification when accessing external volumes.
• X - Do not perform data set name verification when accessing external volumes or accessing a volume as BLP in the JCL of the job.

TMPVLACT

Controls the activation process of the volumes used for temporary storage.

Valid values are:

• N - Control-M/Tape ignores all volumes used for temporary storage of files. The volumes remain as SCRATCH in Control-M/Tape after the job using the volumes completes, but remain as active in the ATL. Default.
• Y- Control-M/Tape activates all volumes used for temporary storage. Volumes are set to ACTIVE, PENDIND_SCRATCH after the job using the volumes completes. These volumes become SCRATCH during the next CTTRTM run, which includes the Control-M/Tape ATL interface in both the Control-M/Tape database and the ATL.
• A - For volumes that are ATL-resident, the activation process is as TMPVLACT=Y. Otherwise, for volumes that are not ATL-resident, the activation process is as TMPVLACT=N.

TRCDELAY

Controls the interruptions of the reading by the IOA functional monitor of the Control‑M/Tape Trace file.

• Mandatory

The format of the parameter is (rec,sec) where

• rec – the number of records processed before reading by the IOA functional monitor stops. Default: 100
• sec – the duration, in seconds, of each interruption of the reading by the IOA functional monitor. Default: 15

If you set the CTTRSRV parameter to Y (to activate Control‑M/Tape Reserve support), BMC recommends that you set the TRCDELAY parameter to (100,30). This prevents contention problems on the disk where the Control‑M/Tape Trace file resides.

STKVCBP

Whether, during Dynamic Stacking, Control‑M/Tape rejects data sets that can be created on more than one volume.

If the VOLUME COUNT subparameter of the VOL parameter is set in JCL to a value other than 1, the data set can be created on more than one volume. In that event, when Dynamic Stacking is performed, Control‑M/Tape, by default, rejects the data set with a reason code of 7.

The STKVCBP parameter enables Dynamic Stacking to be performed despite the setting of the VOLUME COUNT subparameter.

• Mandatory

Valid values are:

• N – Reject data sets that can be created on more than one volume. Default.
• Y – Do not reject data sets that can be created on more than one volume.

  Note: You can use the Product Customization option in ICE to set a value for the STKVCBP parameter.