Collocation has to be turned on or off for a given policy set. I have found
that enabling collocation speeds up restores (but how many restores do you
actually do?) slows down backups since every client needs to go through a
mount of its own tape, and uses alot of tapes. (At least won per client)



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Please respond to ADSM-L AT VM.MARIST DOT EDU

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: Roger Nadler)
Subject:  To Collocate or Not to Collocate?




Big question, I finally got reclamation working on our system. It's amazing
how many tapes change from full to filling when you change reclamation from
60 to 30! Well, now that this is behind me, the next question I would like
to throw out is "How usefull is collocation?" Should I enable it? Will it
save me that much time on retores? How much longer will it take to perform
backups with collocation enabled?? I have to A S S U M E it is going to
take a long time for collocation to first take place when it is enabled.

Mark