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Datasets with NUMS/PACK ON

 
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superk

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Joined: 26 Apr 2004
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Location: Raleigh, NC, USA

PostPosted: Tue Jun 17, 2008 8:06 pm    Post subject: Datasets with NUMS/PACK ON
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I've been around for a long time, and I honestly don't know the answer to this: when is it ever preferable to have a dataset defined with NUMS ON? or with PACK ON?
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enrico-sorichetti

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Joined: 14 Mar 2007
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Location: italy

PostPosted: Tue Jun 17, 2008 9:48 pm    Post subject: Reply to: Datasets with NUMS/PACK ON
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I would say never...

but everything has exceptions,
as far as number on there might be standards to follow,

as far as pack that a no
the main issue is that the packing is transparent under ISPF
and You realize that something is wrong only when You use the thing as sysin for example

so my advice is no no to both questions

[/quote]
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dick scherrer

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PostPosted: Tue Jun 17, 2008 10:55 pm    Post subject: Reply to: Datasets with NUMS/PACK ON
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Quote:
I would say never...
Me too icon_smile.gif

IIRC, pack on was from the days when dasd space was precious and much of what was in a data pds was dead space.

d
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superk

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PostPosted: Tue Jun 17, 2008 10:59 pm    Post subject: Reply to: Datasets with NUMS/PACK ON
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Well, with all of the questions we see on these, I've been curious as to why the Sysprog's and/or Storage Admin's are creating datasets or dataset profiles with these attributes enabled?
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dick scherrer

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PostPosted: Tue Jun 17, 2008 11:20 pm    Post subject:
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Hello,

I suspect that newbies (and some not-so-newbies) are cloning old existing datasets and don't even know they've "specified" these atributes. Realization comes when they "get bitten".
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