At 09:43 AM 3/14/2008, Michael MacIsaac wrote:
Hello list,
A related queston ...
> let me try a CPFMTXA frst.
Whenever I get the opportunity to use new DASD, the first thing I do is
CPFMTXA every cylinder of every volume. This is because I've shot myself
in the toe a few times by *not* doing it (and that hurts :). Once a
"virgin" volume has been CPFMTXA'd it can be dasdfmt'd for Linux for
FORMAT'd for CMS and never has to be CPFMTXA'd again (from experience).
But, if a virgin volume is not CPFMTXA'd and just dasdfmt'd (or
FLASHCOPY'd or DDR'd from another volume), there is no error. Also the
volume (minidisk) will seem to be OK, and Linux can be installed, etc.
But, Strange Things happen to these volumes - like Linux will not always
boot cleanly, etc.
Mike,
What I've done is DDR'd a volume from one to a new one and
what I've seen is the vtoc info is carried along so it looks to me
like VM and or Linux is seeing a duplicate volume even tho the volume
label looks different. I'm guessing this is more me than bug in that
I don't have some parameter right.
AND in the long run, I totally agree with what you said
above, CPFMTXA EVERY cyl of EVERY new volume. This lessens the pain greatly...
Has anyone seen this behavior? If so does anyone know why this happens?
Also could it be argued there is a bug somewhere? Thanks.
"Mike MacIsaac" <[EMAIL PROTECTED]> (845) 433-7061
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Brian W. France
Systems Administrator (Mainframe)
Pennsylvania State University
Administrative Information Services - Infrastructure/SYSARC
Rm 25 Shields Bldg., University Park, Pa. 16802
814-863-4739
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"To make an apple pie from scratch, you must first invent the universe."
Carl Sagan
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