In the IDMS 19.0 install; for the Backup and Restore Steps; where are these datasets allocated?

Products

• IDMS
• IDMS - Database
• IDMS - ADS

Issue/Introduction

The IDMS 19.0 Install JOB18 references a DD statement and dataset

'//SYS001 DD DISP=OLD,DSN=CAI.IDMS.V190.BAK3DICT' .

Where are these Backup and Restore datasets allocated

 

 

Environment

Release:
Component: IDMS

Resolution

There are several points in time in the IDMS Install process where it is advised to take a Backup of the IDMS Database file. These VARBLIST parameters that trigger the Backup and Restore process are optional and therefore can be omitted however creating Backup and Restore of the IDMS database files is recommended.

There are three points during the install where backups and restores could be done.  If the following three variables are set to 'NO', then no backups or restores are done and the remaining variables in this section are ignored.           

The following variables control the three backup and restore steps for the database files.  The first is for the SYSDIRL segment.  The second is for System 99.  The third is a final one for the installed database.                            

The backups and restores are done from disk.  

BKUP1  = YES        DO A BACKUP OR BACKUP/RESTORE OF SYSDIRL SEGMENT?   

BKUP2  = YES        DO A BACKUP OR BACKUP/RESTORE OF SYSTEM 99?         

BKUP3  = YES       DO A BACKUP OR BACKUP/RESTORE OF INSTALLED DATABASE?

The backups and restores are done from disk.  If you specify null values for the three 'VOL' variables below, a specific volume will not be requested in the JCL.                             

BK1VOL = ''         DISK VOLSER FOR BACKUP OF SYSDIRL SEGMENT           

BK1ACT = RESTORE    RESTORE = backup & restore; BACKUP = backup only    

BK2VOL = ''         DISK VOLSER FOR BACKUP OF SYSTEM 99                 

BK2ACT = RESTORE    RESTORE = backup & restore; BACKUP = backup only    

BK3VOL = ''         DISK VOLSER FOR BACKUP OF INSTALLED DATABASE        

BK3ACT = RESTORE    RESTORE = backup & restore; BACKUP = backup only    

BK1DSN = @[email protected]     Dsname for backup of SYSDIRL segment     

BK2DSN = @[email protected]     Dsname for backup of System 99           

BK3DSN = @[email protected]     Dsname for backup of installed database  

The Allocation of Backup and Restore database files are executed in JOB05 and the actual Backup and Restore executions are in JOB09 (SYSDIRL and System99), and JOB18.

 

 

Additional Information

IDMS Release 19.0 Installation and Maintenance Guide for z/OS.
Chapter 5: Starting Your Product, sections ‘Change Control Database‘ and‘ Database Files Backup’