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Space announcement We are no longer updating this space, and you cannot comment on this space. The CHANGE ACCUMULATION PLUS component is now documented in BMC AMI Backup and Recovery for IMS.

DBUSSID keyword

The DBUSSID keyword identifies the subsystem ID of the Database Utilities Subsystem (DBUSS).

You can use the DBUSS to establish an authorized environment for the utility.

Warning

Important

Several techniques are available for obtaining an APF-authorized environment for the utility. For more information, see APF-authorized environment.

For more information about the DBUSS, seeDatabase Products for IMS Customization documentation.

An authorized environment eliminates the following operational problems associated with dynamic allocation:

  • When dynamic allocation attempts to allocate a device and no device is currently available, the operating system issues this message: REPLY device name OR CANCEL.

    The generally preferred message is as follows: REPLY device name, WAIT, OR CANCEL

    The operating system only issues the generally preferred message when the caller is authorized.

  • After the Change Accumulation utility reads and demounts a log tape volume, an operating system enqueue is retained for the tape volume. Consequently, the tape volumes are not available to other jobs until the Change Accumulation utility step completes. By authorizing the step, the tape volumes can be dequeued at dismount time, making the volumes immediately available to other jobs.

Uses

Optional in the global options module and on the GLBL control statement

Related keyword

None

Syntax

DBUSSID(value)

Value

For the value, specify the subsystem name (1 through 4 alphanumeric characters).

Default

DBUSSID(DBUZ)


Related topic

CAPSYSIN keywords


 

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CHANGE ACCUMULATION PLUS 5.1