--- Dave Mussulman <mussulma AT UIUC DOT EDU> wrote:

> On Thu, May 11, 2006 at 09:47:08PM +0200, Kurt
> Beyers wrote:
> > The two copy pools behave completely
> independently.
> >
> > Each command "backup stgpool <primary> <copy>"
> will compare the files in both storage pools and
> copy the data that are in the <primary> pool and not
> yet in the <copy> pool.
> 
> I presume that same 1-to-1 primary/copy mapping is
> true for a file that
> gets migrated between primary pools that both backup
> to the same copy
> pool?
> 
> For example, a disk and a tape primary pool and a
> tape copy pool.  The
> file is created on the disk pool, and copied to the
> tapecopy pool.
> Later, that file is migrated from the disk pool to
> the tape pool.
> 
> When the tape pool is next copied to the tapecopy
> pool, does the file
> transfer again?  Or does TSM know there's already a
> copy of that file
> migrated from another primary pool?
> 
> I believe from my evaluation that the copying is
> happening twice, but
> I'm not sure.  My assumption, in that case, is that
> the disk pool copy
> is expired at that point, so even if the copying
> happens twice, the
> actual post-reclaimation copy pool storage is
> singular.
> 
> I'm new and still getting used to the concepts, so a
> confirmation/correction would be appreciated. 
> Thanks!
> 
> Dave
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com