Constraint Control Statements › Constraint Descriptions › UNFIX: Keeping LSR Buffers and IOBs Pageable

UNFIX: Keeping LSR Buffers and IOBs Pageable

Restriction: Applies only to LSR buffers. See the FIX restrictions in the section FIX: Page Fixing LSR Buffers and IOBs for further information.

Specify the UNFIX constraint to override the fixing of buffers for HIPERSPACE or LSR buffering or to override a FIX constraint that results from the constraint merge process.

See the following control stream for an example:

  CLUSTER=PAYROLL.MASTER.FILE

     SHRPOOL=5	*  Could  also be  LSR

     FIX

   . . .

. . .

   PROGRAM=PAYROLL

     UNFIX

In this example, any program that opens PAYROLL.MASTER.FILE will have page fixed buffers for that cluster. The only exception is if the cluster is opened by PROGRAM PAYROLL, in which case the buffers are not page fixed.