HP LTO1 drives also had the ability to vary their speed.  This was
one of the main reasons we purchase HP LTO1 drives instead of
IBM LTO1 a long time ago.

3592 drives also have this ability.

Rick




             Paul Zarnowski
             <psz1 AT CORNELL DOT EDU
             >                                                          To
             Sent by: "ADSM:           ADSM-L AT VM.MARIST DOT EDU
             Dist Stor                                                  cc
             Manager"
             <[email protected]                                     Subject
             .EDU>                     Re: FW: Tape Drive Choices:  What,
                                       and why?

             08/08/2006 11:37
             AM


             Please respond to
             "ADSM: Dist Stor
                 Manager"
             <[email protected]
                   .EDU>






At 09:00 AM 8/8/2006, Kauffman, Tom wrote:

>The biggest item to remember about LTO is that these are streaming tape
>drives; if your system can not provide the data fast enough to keep the
>tape in motion they have to stop, back up, and come up to speed again.
>They aren't designed for that -- the 3592 drives are. That is the
>biggest reason for the price differential.

This was more true with LTO-1 than with -2 or -3.  The later
generation drives can vary their speed to try to match the data rate,
thus avoiding some backhitching.  But Tom is correct that the motors
in the 3592 drives are probably bigger and more powerful, and can
thus backhitch more quickly.  (this is my guess, not fact)



--
Paul Zarnowski                            Ph: 607-255-4757
Manager, Storage Services                 Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu



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