Re: Differencies between DLT and MAGSTAR technology from A

     Quick  note,  the 3590 will be faster in positioning the tape...
     or should I phrase that as the 3590 will come to speed (and or stop)
     in less time.  The 3590 can go in a 3494ATL ;-)  I can't say 'bout the
     DLT 4700 BUT I have some 10GB tapes with 80GB of user file space due
     to the hardware compression it performs.  I'm right there with you on
     the OUCH to the wallet but our distributed environment has been
     growing out of control AND IF WE DIDN'T HAVE 3494ATL'S WITH 3590
     MAGSTARS I WOULD BE IN A WORLD OF HURT RIGHT NOW! (the traffic on our
     two adsm servers has gone like this: 1st server Jun:1.4terabytes,
     Jul:2.4terabytes, Aug:3.4terabytes ; 2nd server May:2.4terabytes,
     Jun:3.3terabytes, Jul:3.5terabytes, Aug:4.785terabytes   and by
     traffic I mean data into the server as backups/archives and data out
     of the server as restores/retrieves... I believe total files in each
     atl is right on the 7 terabyte number.... (I haven't checked lately...
     just know I've got plenty of scratch volumes)
     Oh, and YES the magstar can do high speed positioning to files deep in
     the tape.

     Hey, you might want to check into IBM's latest offerings in the tape
     storage area....

     later
          Dwight



______________________________ Reply Separator _________________________________
Subject: Differencies between DLT and MAGSTAR technology from ADSM
Author:  ADSM-L at unix,mime/DD.RFC-822=ADSM-L AT VM.MARIST DOT EDU
Date:    9/24/96 5:01 AM


 Hello !

I am looking for info of differencies between Quantums DLT 4700
and Magstar 3590 High Performance Tape Subsystem Model B11.

These two tape drives has approx. same capacity/GB in one unit
but B11 is much more expensive. What are those things that makes B11
worth of money in case of ADSM. I know that the technology is different
but what those numbers really mean in practice...

Does the ADSM access B11 diffrently than 4700, how does the tape indexing
differ between B11 and DLT 4700, etc. etc.

  Best Regards,
  Matti Harvala
  Unix System Manager


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