> I suppose when you do a stand alone clone it is demultiplexed but I don't
> think automatic clones are.

Even a standalone clone is not intentionally de-multiplexed.  Of course,
even without trying to, it may become de-multiplexed if you don't clone
every saveset on the tape.  If a particular section of tape has several
savesets, but only one is cloned, it will not be multiplexed on the
clone volume.

> We set Networker to automatically clone our
> backups and our weekend full backup is between 400GB & 500 GB.  It takes us
> about 2.6 AIT-4 tapes for a full backup and at least 3 of the save sets will
> span all 3 volumes but I don't see the tapes being unloaded and loaded in
> the way they would have to be in order to demultiplex the save sets.  It
> just loads them in order until the clone is done.
> 
> So I think an automatic clone is basically just a copy of the original
> backup with the multiplexing intact.

Yes, and with automatic cloning you're likely cloning all savesets on
the volume, so the multiplexing is retained on the clone.

-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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