Determine If Top Secret VSAM Backup File Has REUSE Or NOREUSE

Products

• Top Secret

Issue/Introduction

Is there a way to tell if the Top Secret VSAM backup file was allocated with REUSE or NOREUSE?

Environment

Release : 16.0

Resolution

You can do an IDCAMS LISTCAT on the VSAM back up file. For example:

//jobcard
//STEP01   EXEC PGM=IDCAMS,REGION=2M                    
//SYSPRINT DD  SYSOUT=*                               
//SYSOUT   DD  SYSOUT=*                                           
//SYSIN DD *                                          
 LISTCAT ALL ENTRIES(vsam.backup.file)         
/*

It will show REUSE or NOREUSE in the ATTRIBUTES section on the line in bold below. (You can also do a Find on REUSE.)

ATTRIBUTES                                                                
  KEYLEN----------------64     AVGLRECL-------------256     BUFSPACE------
  RKP--------------------0     MAXLRECL-----------24576     EXCPEXIT------
  SHROPTNS(3,3)   RECOVERY     UNIQUE           NOERASE     INDEXED            NOWRITECHK     UNORDERED          REUSE