Memorex LOCK - VERSION 2-24 Especificaciones descargar pdf (Pagina 197)

DD Statements for Tape and Disk Datasets Deleting Datasets Using DDGEN and the DISP Parameter

Chapter 6. BIM-EPIC DD Statements 6-19

DISP=(OLD,KEEP) and DISP=(OLD,KEEP,KEEP) will automatically reset any delete at

end-of-step or delete at end-of-job action currently in effect for the the specified dataset

Normal deletion will occur at file close but, when used in conjunction with the automatic

concatenation feature, deletion will occur at end-of-step. If usage is MOD, deletion will occur

at end-of-job.

In cases of abnormal termination, the end-of-step and end-of-job deletions above can be

overridden. To do this, set the PURBYP configuration option to YES.

BIM-EPIC does not delete datasets at end-of-step or end-of-job unless they have been opened.

This can be overriden to allow the deletions even though there has not been an open. To do

this, set both the DDGEN configuration option and the EPS049 special option to YES.

For both normal and abnormal terminations, other DISP settings are treated as follows:

Setting Is Treated Like...

DISP=MOD DISP=NEW

DISP=SHR DISP=OLD.

DISP=(xxx,CATLG)

DISP=(xxx,CONDCAT)

DISP=(xxx,KEEP)

DISP=(,xxx) defaults to DISP=(NEW,xxx).

For tape datasets, if KEEP is explicitly specified, the tape will be unloaded when it is closed

If KEEP is not explicitly specified, the tape will not be unloaded at close. As a default, KEEP

does not unload the tape. VOL=RETAIN overrides KEEP.

(1) Catalogs the dataset automatically if no entry for it already exists in the DSN Catalog or

(2) updates the dataset definition if one exists only when configuration option

JCLOVRDE=YES is used.

CATLG can cause the following fields to be updated:

Tape/Disk Tape Only Disk Only

Retention Tape pool Disk pool

Block size CISIZE

Density Primary extent size

Secondary extent size

Maximum number of secondary extents

BIM-EPIC uses the information specified in your DD statement to create or update the dataset

definition.

By default, tape datasets are always cataloged as generation datasets, and disk datasets as non-

generation datasets. The exception to this occurs when LABEL=RETPD=xx is specified for a

NOTE 1

NOTE 2

PURBYP Override

EPS049 Option

Additional DISP

Settings

KEEP

CATLG

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Memorex LOCK - VERSION 2-24 Especificaciones Pagina 197

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