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Version Information Automatic Cataloging

Chapter 1. Introduction 1-19

Automatic Cataloging

Each new dataset and version must have an entry in the DSN Catalog to be controlled. These

entries can be created automatically for uncontrolled datasets using the AUTOCAT and

AUTOLOG features or the parameter DISP=(x,CATLG) parameter on a DD statement.

AUTOCAT and AUTOLOG are configuration options described in the BIM-EPIC

Installation and System Guide.

AUTOCAT and AUTOLOG operate globally on all qualifying datasets. DISP=(x,CATLG)

operates locally on the single dataset named in the DD statement that contains this parameter.

For more information on DISP=(x,CATLG), see Chapter 6, “BIM-EPIC DD Statements”.

AUTOCAT and AUTOLOG are independent but parallel functions. They operate under the

same rules. However there is an important functional difference between them: AUTOCAT

catalogs uncontrolled output tape datasets and versions. AUTOLOG catalogs uncontrolled

input tape datasets only (no versions).

AUTOCAT creates a dataset definition for an output dataset if that dataset is not already

entered in the DSN Catalog. All subsequent versions created under the dataset name will also

be cataloged, including the one that triggers the AUTOCAT operation.

When autocataloging multi-dataset groups that are read out of sequence, ensure that the prime

dataset is entered in the DSN Catalog before any subdataset in the group is read. This

requirement is automatically satisfied when the datasets are read in sequence beginning with

the prime dataset.

The following fields are entered in each autocataloged dataset definition:

•

Retention days

• Cycles retention

•

Default disk pool

•

Default primary extent

On reports and displays, automatically cataloged datasets are identified by a User ID of “AC”

and given the comment “**** AUTO CATALOGUE ****”. All automatically cataloged

datasets are generation datasets. These dataset definitions can be changed later using Online

Manager or the TSIDMNT utility.

AUTOLOG creates a BIM-EPIC dataset definition (EDD) for an input tape dataset that is not

already in the DSN Catalog. However, AUTOLOG does not also autocatalog any versions to

the EDD, as AUTOCAT does. AUTOLOG is primarily used to force standard EP001

MOUNT messages for previously uncontrolled input tape datasets.

When autologging multi-dataset groups that are are read out of sequence, ensure that the prime

dataset is entered in the DSN Catalog before any subdataset in the group is read. This

requirement is satisfied automatically when datasets are read in sequence beginning with the

prime dataset.

Description

AUTOCAT

AUTOLOG

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