Memorex LOCK - VERSION 2-24 Technické informace stáhnout pdf (Strana 229)

100

101

Parameters for Processing Datasets

User Reference

Use Pursuant to Company Instructions

6-13

uncataloged datasets defined with DD statements. See Chapter 1,

“

Cataloging Datasets Automatically,” for additional information on

autocataloging using configuration options.

The following example creates a new version of a previously cataloged

dataset. The associated default block size is overridden. The actual block

size is 4080.

* //TAPEOUT DD DSN=SARS.BACKUP,DISP=(NEW,KEEP),

* // DCB=BLKSIZE=4080

The following example creates a new, uncataloged dataset. When created,

the dataset is automatically cataloged. In addition, the values for block

size, period retention, and density are entered in the dataset definition.

* //TAPEOUT DD DSN=SARS.BACKUP,DISP=(NEW,CATLG),

* // DCB=(BLKSIZE=4080,DEN=3),LABEL=RETPD=7

Start Track 1

Datasets

To create a Start Track 1 dataset, use the SPACE parameter

(SPACE=TRK, SPACE=CYL, or SPACE=ALR). You must use the

VOLUME parameter to allocate the space to a disk pool. Do not catalog

the dataset or specify DISP=(x,CATLG).

* //DISKOUT DD DSN=TWORK.BG,DISP=(NEW,PASS),

* // SPACE=(TRK,(10,5),RLSE),VOL=SER=POOL01,UNIT=DISK

Uncontrolled

Datasets

To create an uncontrolled non-VSAM disk dataset on a POOL or

non-POOL volume, use the SPACE=ABSTR and VOL parameters. No

special parameters are required to create an uncontrolled tape dataset. Do

not specify DISP=(x,CATLG). If you specify DISP=(x,CATLG), the

dataset will be cataloged.

To use BIM-EPIC DD statements for uncontrolled disk datasets, the

UNCDSK=YES configuration parameter must be set.

* //OPTOUT DD DSN=EPIC.LIBRARY,SPACE=(ABSTR,(100,20)),

* // DISP=NEW,VOL=SER=SYSWK1,UNIT=DISK

VSAM/SAM

Datasets

To process a VSAM/SAM dataset, use the AMP, DISP, and SPACE

parameters for both input and output. You can use the VOLUME

parameter to specify a disk volume. Identify the VSAM catalog using a

STEPCAT DD statement or JOBCAT DD statement.

In the following example, the STEPCAT DD statement defines the

catalog for the VSAM/SAM dataset. AMP=AMORG indicates that a

VSAM or VSAM/SAM dataset is being defined. DISP=SHR allows the

dataset to be accessed by other programs as it is processed. This example

uses ALR to allocate space to the dataset, using a record size of 240 bytes,

and allocates a primary extent large enough for 1000 records and a

secondary extent large enough for 500 records.

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