Memorex LOCK - VERSION 2-24 Especificações descarregar pdf (Página 275)

Maintaining the DSN Catalog (TSIDUTL) SYNCOPT

Chapter. 6 Additional BIM-EPIC Utilities 6-19

SYNCOPT

After the completion of a TSIDUTL SCRATCH, TSCRATCH or DSPLY function.,

SYNCOPT causes an ACL synchronization to be automatically done for OPTI-TAPE ACL

defined to BIM-EPIC.

When used, it must precede the SCRATCH, TSCRATCH, or DSPLY function statement in

the job stream.

If it is not present, an automatic ACL synchronization is not done.

The EP ACL SYNC command cannot be used for an OPTI-TAPE ACL.

SYNCOPT should be used with caution, and probably not at all. There should never be

a need to run a SYNCOPT to synchronize OPTI-TAPE and BIM-EPIC inventories,

because the normal EPIC SCRATCH runs will always tell OPTI-TAPE which volumes

are to be scratched.

For real ACLs, an out-of-synchronization inventory condition occurs because an operator

removes tape cartridges from the ACL and BIM-EPIC will not be aware of the removal.

Since OPTI-TAPE is a virtual ACL, volumes cannot be removed. When a SCRATCH

VOLUME nnnnnn command is received from BIM-EPIC, OPTI-TAPE deletes the VSAM file

that contains the data for the virtual tape volume. There may be a lag between the time the

SYNCOPT process begins and the time the SET VOL nnnnnn TO SCRATCH STATUS

command is received. The BIM-EPIC catalog may have already had the volume in scratch

status, and during the time lag, the volume could have been used for data. When the SET

VOL SCRATCH command is received, OPTI-TAPE will delete the just-written data and it

will be lost.

SYNCOPT

None

// JOB SCRATCH

// DLBL SORTWK1,’$$$.SORTWK1,(D)’

// EXTENT SYS001

// DLBL WORK,’$$$.SCRATCH.WORK,(D)’

// EXEC TSIDUTL

SYNCOPT

DSPLY SCRATCH,SEQ=SERIAL

Description

Syntax

UPSI Values

Example

1 2 ... 270 271 272 273 274 275 276 277 278 279 280 ... 358 359

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Memorex LOCK - VERSION 2-24 Especificações Página 275