HP3000-L Archives

July 2000, Week 3

HP3000-L@RAVEN.UTC.EDU

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From:
"Johnson, Tracy" <[log in to unmask]>
Reply To:
Johnson, Tracy
Date:
Fri, 21 Jul 2000 15:49:01 +0100
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On the Powerhouse list, the topic of fixed REPORT LIMITs on the
HPe3000 version versus the NOLMIT option on VAX and HP-UX versions
appeared:

This may sound simplistic, only because I do not know how the
HPe3000/POSIX domain compares with the HP9000/HP-UX domain,
so here goes:

They why can't Powerhouse just create the file in the POSIX
domain, with uppercase characters?

It would look and feel just like the MPE/iX domain.  Except that
Unix-like behavior would apply.  Such as the NOLIMIT option.

Am I wrong here or is this just too simple?  Am copying this to
the HP3000 List.  Perhaps they'll guide me further.

> -----Original Message-----
> From: Hamilton, Allison [mailto:[log in to unmask]]
>
> OpenVMS dynamically extends files as it requires space, to
> the limit of the disc space available. (I believe that UNIX
> is the same.) MPE/iX pre-allocates file limits and then eats
> up space as it requires it to that limit, but not beyond,
> thus the requirement for a max expected size on
> MPE/iX machines. Yes, there may be products that go in a
> twiddle the file system to bypass this restriction, but the
> file system doesn't support it directly.  This is why OpenVMS
> and UNIX have NOLIMIT, and MPE/iX does not.

Tracy M. Johnson
TRW Automotive Electronics
Sensors & Components

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