RE: Save/restore Compression algorithms....

["Allen, Stuart" <sallen@xxxxxxxxxxxx>]

Don,
I believe that the GO SAVE commands use the default *DEV.  You'll need to
check the Backup and Recovery manual to be sure, and this should also give
the recommended compression/compaction settings for each device.

Regards,
Stuart
                                     
Stuart Allen
European Systems Analyst
Fellowes

mailto:sallen@fellowes.com


> -----Original Message-----
> From: Don [SMTP:dr2@cssas400.com]
> Sent: Thursday, May 18, 2000 4:21 PM
> Subject:      Save/restore Compression algorithms....
> 
> 
> Greetings,
> 
> We're working on doing some system saves under program/CL control.  One of
> the interesting things we found was that a save *nonsys under CL control
> specifying DTACPR(*YES) took more time and more tape vs the straight GO
> SAVE/21.
> 
> Is there a difference in the algorithm being used by software vs hardware?
> 
> I can see a definate time/performance difference between the 2, and I'm
> curious as to if the newer hardware compression (for a 6385 tape drive in
> this case) is different.
> 
> Thanks..
> 
> Don in DC
> 
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