My opinion is that collocation is good ONLY if you expect to do a LOT of
restores and then ONLY if you don't have a robotic silo and the tape
handlers are slow.  I prefer to be optimistic (and history proves me out
here, anyhow).  We run much more efficiently on a daily basis by NOT
using collocation and we rarely (crossed fingers) have a need to fully
restore a client.

> -----Original Message-----
> From: Mark Linehan [SMTP:markl AT NSMC.PARTNERS DOT ORG]
> Sent: Monday, January 05, 1998 8:19 AM
> To:   ADSM-L AT VM.MARIST DOT EDU
> 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