Control groups that have a QCLD prefix will enable BRMS to automatically create and transfer media to the cloud. Control groups QCLDBIPLxx or QCLDBGRPxx need to be used to burn DVDs for recovery. If the backup is using media class QCLDVRTOPT, the BRMS default is to create 10 virtual volumes to backup to optical.
The number of virtual optical volumes to create can be specified by running the following command:
CALL PGM(QBRM/Q1AOLD) PARM('NUMOPTVOLS' '*SET ' 'nn')
where - nn is the number of volumes to auto create. This value must be between 01 and 75.
The number of volumes to create can be displayed by running the following command:
CALL PGM(QBRM/Q1AOLD) PARM('NUMOPTVOLS' '*DISPLAY').
The number of volumes to create can be reset to the default value of 10 by running the following command:
CALL PGM(QBRM/Q1AOLD) PARM('NUMOPTVOLS' '*REMOVE').
Since optical devices do not have an exit program interface to handle media switching while a backup is running, the backup command must provide enough volumes to successfully hold the backup data. A symptom that indicates the backup does not fit on the initial number of volumes provided is the backup will fail with message BRM4301 'Volume list exhausted'.
When using control groups QCLDBIPLxx or QCLDGRPxx, the required volume size is 4.7G to burn DVDs for manual recovery. The control group data size cannot exceed 350Gb due to the 75 volume restriction.