Memorex LOCK - VERSION 2-24 Especificações descarregar pdf (Página 206)

OPTION Parameter DD Statements for Tape and Disk Datasets

6-28 User Reference

OPTION=RUN can be used to unload the tape at close. It overrides any rewind option

defaulted to by the DISP or VOL parameters.

Specifies that the primary extent allocation is to be based on the amount of space used by a

dataset that was defined previously in the same job step. Identify the dataset you are referring

to by specifying its ddname in the SPACE parameter. RLSE is automatically invoked with

SPACE refer-back.

There are several ways in which the size of the allocation can be varied:

1. To specify that the dataset is to be exactly the same size as the referenced dataset, use the

format:

SPACE=*.ddname

2. To specify that a dataset is to be larger than the referenced dataset by an exact number of

tracks or FBA blocks, use the format:

SPACE=*.ddname+n

where n is the number of tracks or FBA blocks to be added to the size of the referenced

dataset.

3. To specify that a dataset is to be smaller than the referenced dataset by an exact number of

tracks or FBA blocks, use the format:

SPACE=*.ddname-n

where n is the number of tracks or FBA blocks to be subtracted from the size of the referenced

dataset. Note that an error will result if the calculated allocation is not a positive number.

4. To specify that the size of the dataset is to be a percentage of the size of the referenced

dataset, use the format:

SPACE=*.ddname*n

where n is a number between 000.01 and 999.99 (leading zeroes are not required).

If the referenced dataset is cataloged, the allocation will be based on the amount of space the

referenced dataset actually occupies (the sum of its primary extent space and all secondary

extent spaces). If the referenced dataset is uncataloged, the allocation will be based on the

amount of space in the referenced dataset's primary extent only.

The following DD statement defines the referenced dataset:

* //REFFILE DD DSN=dataset-name,DISP=SHR

To allocate a new dataset one track larger than the space the referenced dataset occupies,

specify:

* //FILEOUT DD DSN=dataset-name,DISP=(NEW,CATLG)

* // UNIT=SYSDA,OPTION=SPACE=*.REFFILE+1

RUN

SPACE=

*.ddname[x]

SPACE Examples

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Memorex LOCK - VERSION 2-24 Especificações Página 206