On Tue, 25 Jul 2006 13:56:23 -0500, Mike Walter <[EMAIL PROTECTED]> 

wrote:

>Has anyone been able to interface VM:Tape to permit sharing tapes with
>z/OS -- specifically using the z/OS "IBM DFSMSrmm" database (a VSAM file
)?
>RMM has a field labeled "RVVMUSE", which is apparently used by
> tapes reserved for "VM use", but I have not found anything that indicat
es
>what might use that field.  Perhaps IBM's new "IBM Tape Manager" product

>uses that field?

IBM Tape Manager for z/VM does not use this field.  On behalf of each VM 

user, we act like any other requester to RMM.  There is no special VM 
marking of our tapes in the RMM catalog and there's no special flag in ou
r 
requests to indicate they are coming from VM.  Instead, we rely on the 

customer's security mechanism (e.g. RACF or other ESM on z/OS) to 
determine if the requesting VM user is authorized to the tape.  With Tape
 
Manager, a z/OS user and a z/VM user could technically be authorized to 

access the same tape.

Tracy Dean
IBM Product Manager

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