7Exchanging Tapes with FDR/UPSTREAM z/OS

The tapes generated with the UPSTREAM Reservoir are logically interchangeable with the tapes generated with FDR/UPSTREAM assuming that the media is compatible.  For example, if you have a 3590 tape drive on your Windows, UNIX or Linux system and on your z/OS system, FDR/UPSTREAM can use the tapes generated with UPSTREAM Reservoir.  Similarly, tapes generated with FDR/UPSTREAM can be imported into the UPSTREAM Reservoir.

However, there are some important rules you must follow, particularly when importing tapes on UPSTREAM z/OS that were created on Reservoir.  In the profile definition, these include:

• NOT check Write Fixed Size Blocks
• Recopy Incremental Data

In your backups you must not use file names greater than 255 bytes or more than 16 million files in a merge backup.  It is recommended that you not exceed more than 8 million files to avoid exceeding the available memory to UPSTREAM z/OS.

A tape set is one or more tapes which are generated by an UPSTREAM Reservoir system which can comprise one or more backups for one or more profiles. On z/OS these are maintained in your z/OS tape management system.  In the UPSTREAM Reservoir, these are maintained in tape set files.  The first step is to get the system you’re importing into, to recognize this set of tapes.

Once the tape set is cataloged, you then must import into the UPSTREAM backup and file catalog the contents of the tapes.