RE: Tape backup strategy

V5R3 has added a few options to compression:

Data compression
 
  *DEV 
  *NO 
  *YES 
  *LOW 
  *MEDIUM 
  *HIGH 

I took something in a save file saved with *HIGH and only got a ?17%? 
further compression when I zipped it.  Use a simple *YES and zip will get 
a higher ratio.  They both end up with the same size zip file.  So I 
recommend the *HIGH.

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





"Jones, John (US)" <John.Jones@xxxxxxxxxx> 
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10/01/2004 02:19 PM
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RE: Tape backup strategy






Add DTACPR(*YES) to your SAVLIB commands to use compression on the save
file.  That should dramatically reduce the amount of disk space required
for the SAVF.

John A. Jones, CISSP
Americas Information Security Officer
Jones Lang LaSalle, Inc.
V: +1-630-455-2787  F: +1-312-601-1782
john.jones@xxxxxxxxxx

-----Original Message-----
From: Steve Morrison [mailto:smorrison@xxxxxxxxxxxxx] 
Sent: Friday, October 01, 2004 1:28 PM
To: Midrange Systems Technical Discussion
Subject: RE: Tape backup strategy

The previous message was incomplete.

The simplest approach is to save to a savefile, on the AS/400, then save
the savefile to tape during the day. Do you have enough empty disk space
to accomplish this?

The command would be SAVLIB LIB(libname) DEV(*SAVF)  SAVF(savefile)

The save file will have to be created before you run this command.

To copy the savefile to tape use   SAVSAVFDTA SAVF(savefile) DEV(TAPxx)


Steve Morrison
Beacon Insurance
940-720-4672 



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