Copying backup tapes and updating VM:Backup catalog.

Document ID : KB000045168
Last Modified Date : 14/02/2018
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Introduction: 

How to copy tapes from one virtual tape library to another and re-catalog the data on the new tapes.

 

Question: 

We use an EMC DLM virtual tape library and are PLMing our old subsystem.   We have around 7.5 TB of data out there, the vast majority being VMBACKUP data, with a retention period of two years.  Is there a way to copy the backup sets from the old to the new subsystem?    It would be really, really great if VMBACKUP had a function to copy old backup sets, and re-catalog the data on the new tapes.       What do you recommend?

 

Environment:  

Creating backups with VM:Backup and using EMC DLM virtual tape library. 

 

Answer: 

Customers need a means of migrating existing VM:Backup tape media and associated catalogs to new tape media and we now provide a solution for doing so.

We recommend using VM:Backup's tape copy utility, VMBMCOPY which was introduced in VM:Backup r3.5.  The utility requires that you be running VM:Tape as well.

VMBMCOPY allows copying to a totally different media type with different capacities and labeled with a different volser.  Because of that, it is much more compatible with normal tape handling procedures.  It also has the advantage of creating a new VM:Backup catalog that refers to the new tape volsers.   

 

Additional Information:

VMBMCOPY is fully documented in the VM:Backup r3.6 System Programmer Reference which can be accessed at 

     https://docops.ca.com/ca-vm-backup-for-zvm/3-6/en/system-programmers-reference/utilities/vmbmcopy-utility