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Have you tried the new V5R3 compression features?  They are very 
impressive.  I took an object saved with *high and got only a minimal 
improvement by zipping it up.  Compared to *high, dtacpr(*yes) is a cruel 
joke.

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"Wilt, Charles" <CWilt@xxxxxxxxxxxx> 
Sent by: midrange-l-bounces@xxxxxxxxxxxx
02/01/2005 02:03 PM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>


To
"Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
cc

Subject
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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