Eric,

The answers will depend on your design. Will the 3rd system be a standalone
system that is only used for backup and restore, or do you want the existing
two systems to directly access the backup datasets for restore?

If it's the first case, then I would say you don't want to share anything.
The 3rd system should have its own catalogs, tape management, etc. You
probably want to set up a complimentary backup of the 3rd system in the
production sysplex.

The second case becomes far more complex, as there are components that must
be shared. While you can probably back these things up, it is going to be a
pain in the proverbial to restore them when they are being used for the
restore.

If the FDR base product does not support DUMPCONDITIONING and they won't
spring for FDRINSTANT, then I would suggest going with case 1. If it is a
single DS8K then this would allow you to have the whole system in a single
FC Consistency group, giving you a real point in time copy and backup
capability (bad luck if you have two boxes though).

Using Incremental FC should also save you a lot of back-end IO contention,
and give you a fast restore capability if you need it.

Ron

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
> Behalf Of Eric Bielefeld
> Sent: Saturday, September 06, 2008 10:05 AM
> To: [email protected]
> Subject: Re: [IBM-MAIN] Info on Setting Up an Lpar for Flashcopy
> 
> Ron,
> 
> Thanks for the information.  As I said in an earlier post, we don't
> have
> DFDSS, so I can't do dumpconditioning.  I will take your
> statement, "This is the problem with the 2nd LPAR backup method - it's
> an accident waiting to happen.", and show it to my boss.  That might
> be enough leverage to get FDRINSTANT, or the other product which I
> can't remember the name of, but I doubt it.
> 
> Another problem with the 3rd lpar approach is that we have a GRS ring,
> and as I understand it, a 3rd lpar contributes logarithmically to the
> wait
> times.  That is why the 3rd lpar would be probably shut down except
> for the weekly pack backups.
> 
> One question I do have though is if I am IPLing from a single or 2 pack
> system, and I have a few things online, such as the Zara tape catalog
> (which I know nothing about yet but soon will learn), or the
> usercatalog the tapes are cataloged in, what happens since there is a
> duplicate volume that was flashed?  Is that part of the accident
> waiting
> to happen?
> 
> By the way, we don't have DFHSM either, and I don't know what
> FRBACKUP is, but I assume that HSM is required.  I'm not sure if we
> have FDRABR or not.  I'll probably call them on Monday.  I know we
> have FDR and I think we have Compaktor, but I'm not sure.
> 
> In answer to Tom Conolly, since my internet connection at my hotel is
> so slow, I will look at FDRINSTANT, but my hopes are not too high.  It
> was good talking to you several days ago.
> 
> Eric Bielefeld
> 

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