> I wish to duplicate certain images in a week based on
> schedule name and would like to duplicate to multiple
> drives.
> 
> For example i have 14 drives and 2 media servers are
> assigned to perform the bpduplicate, i require each
> media server to use at least > 4 drives at the same
> time to complete the duplicate quicker...i saw a mpx
> in the bpduplicate command but

That's "preserve multiplexing."

> what i need is multi stream instead of multiplex.

AFAIK, there is any way to multiplex images except when they are made,
so do it then or never.  (None of the pointers in the catalog of the
images would be valid if they were mixed into a combined backup--it
would take laying the files back out and then repackaging them all to
get the insides of the backup correct.)

As others have pointed out, if you're duplicating disk-based images,
you ought to be able to read off the disk fast enough to max out tape
drive speed.  If you can't, that's the area to attack for performance.


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