isn't that cutting it too thin? Esp. now with costs of media being so
low. Unless you are talking of 000's of tapes.
 I'd use the basic tape capacity to calculate the tapes needed to be
safe. I have been burnt before by using compression numbers to
calculate tapes required. When jobs fail ( they do very often) you end
up having chunks of space used up on tapes thats un accounted for.
Whatever compression you gain gets offset by failed jobs, bad tapes
etc.
- my 2 cents.


On Apr 7, 2005 11:29 AM, Jerry <juanino AT yahoo DOT com> wrote:
> I'm trying to estimate how many tapes to purchase for
> a backup project.  Is there a way to tell the
> compression ratio I'm getting with hardware
> compression?  I have some backups of various systems
> but unless they are all the same type of backup and
> the tape is full, I'm not sure how to calculate it.
> 
> Jerry
> 
> 
> __________________________________
> Do you Yahoo!?
> Read only the mail you want - Yahoo! Mail SpamGuard.
> http://promotions.yahoo.com/new_mail
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>