Customizing Control-M/Tape

Control-M/Tape Customization Considerations

Additional Control-M/Tape Customization Parameters

These parameters are found in Step 1.5 of Control-M/Tape customization:

Table 34 Operational Parameters for Control-M/Tape Customization

Parameter	Description
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.

These parameters are found in Step 1.7 of Control-M/Tape customization:

Table 35 Stacking Parameters

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

Parameter

Description

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.

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

For information about other Control-M/Tape parameters that may be specified during a customized installation, see the "Installing Control-M/Tape" chapter in the INCONTROL for z/OS Installation Guide: Installing.