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  2. MIDRANGE-L
  3. February 2005

RE: Using DVD-RAM drive

Some informal testing:

Data library totaling 3.27GB


using
SAVLIB  DTACPR(*YES):  18 min  (795.27MB on DVD)

SAVLIB  DTACPR(*NO) : 105 min  (3.27GB on DVD)

vs.

SAVLIB DEV(*SAVF) DTACPR(*YES) :  2.5 min
SAVSAVFDTA                               : 49   min  (2.14 GB on DVD)


Note that when writing to DVD-RAM (and to a *SAVF) DTACPR(*DEV), doesn't use 
compression.  You must specify DTACPR(*YES).

Interesting that the compression ratio when writing to the save file is so much 
worse than the compression ratio when writing to the DVD-RAM.  I would have 
expected it to be the same.  Anybody know why this is not the case?

Hope others find this helpful,

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121

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