My area isn't really DFDSS but the format of the command used to create the
backup determines whether the backup is a logical or physical one. A logical
backup can be restored to most any DASD type whereas a physical must be
restored to the same DASD format from which it was backed up.
I'm sure there are other differences but for my understanding this is the
basic one. I had a colleague who was handed a bunch of tapes and asked to
restore some old files. Recovery went well until he realized he had a physical
backup from an old 9345 DASD volume.
Regards,
Stan
Stan Weyman
Senior Software Engineer
[email protected]
EMC² (508)249-3966
where information lives
It is wise to keep in mind that neither
success nor failure is ever final...
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of
John Norgauer
Sent: Wednesday, November 17, 2010 6:05 PM
To: [email protected]
Subject: DFDSS question
What makes a DFDSS back-up a logical dump as opposed to a physical dump?
John Norgauer
Senior Systems Programmer
Mainframe Technical Support Services
University of California Davis Medical Center
2315 Stockton Blvd
ASB 1300
Sacramento, Ca 95817
916-734-0536
SYSTEMS PROGRAMMING...... Guilty, until proven innocent !! " JN 2004
........
"Hardware eventually breaks - Software eventually works" anon
........
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