One new feature in 3.2 is multiplexed duplications, you can duplicate a
multiplexed tape to another tape in the same multiplexed format without
having to demultiplex it, which was the reason for reading each individual
image one at a time.

Bob

-----Original Message-----
From: Vandevegt, James Matthew (Jim) [mailto:vandevegt AT lucent DOT com]
Sent: Wednesday, March 22, 2000 5:15 AM
To: 'veritas-bu AT eng.auburn DOT edu'
Subject: [Veritas-bu] Re:multiplexing and multistreaming


Multiplexing can definitely slow down an image duplication since the drive
reading the tape will take time to skip over the data interlaced on the tape
that is not part of the image you wish to duplicate.

I think multistreaming actually creates a unique image for each stream you
define.  Since you are duplicating one image, this should be no cause for
alarm. If you want a duplicate of a "backup" that was multistreamed, I think
you need to duplicate all the streamed images, and I think you need to
identify those manually.

--Jim

> From: Kyle O'Connor [SMTP:koconnor AT powertel DOT com]
> 
> Does the use of multistreaming and/or mutiplexing your backups cause the
> duplication process to run longer than
> it would if these tools were not used?
> 

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