Thank you all for the clarification. ... now I know.... (o:

Avy Wong
Business Continuity Administrator
Mohegan Sun
1 Mohegan Sun Blvd
Uncasville, CT 06382
(860)862-8164
(cell) (860)961-6976




             Richard Sims
             <rbs AT BU DOT EDU>
             Sent by: "ADSM:                                            To
             Dist Stor                 ADSM-L AT VM.MARIST DOT EDU
             Manager"                                                   cc
             <[email protected]
             .EDU>                                                 Subject
                                       Re: [ADSM-L] LTO2 storage space

             05/30/2008 11:17
             AM


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






The storage capacity of any medium is fixed: conceptually, it has a
certain number of "byte storage cells" and no more.  Compression
allows you to represent the original data in fewer bytes, and in a
virtual sense "get more on a tape".

An LTO2 tape has a fixed "byte storage cell" capacity of 200 GB.  You
can't write 201 GB to it, but you can reduce the data by compression
such that it takes up less space.  Tape drives provide transparent
compression in hardware to make that possible.

    Richard Sims