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From: zemon@felix.UUCP
Newsgroups: comp.sys.dec,comp.unix.wizards,comp.unix.questions
Subject: Re: Why doesn't Ultrix allow "a" partitions to shrink?
Message-ID: <2903@felix.UUCP>
Date: Tue, 2-Jun-87 15:14:28 EDT
Article-I.D.: felix.2903
Posted: Tue Jun  2 15:14:28 1987
Date-Received: Thu, 4-Jun-87 06:43:01 EDT
References: <12963@teknowledge-vaxc.ARPA> <12964@teknowledge-vaxc.ARPA>
Sender: daemon@felix.UUCP
Reply-To: zemon@felix.UUCP (Art Zemon)
Organization: FileNet Corp., Costa Mesa, CA
Lines: 24
Keywords: Ultrix disk parition a only grows
Xref: utgpu comp.sys.dec:182 comp.unix.wizards:2353 comp.unix.questions:2355

In article <12964@teknowledge-vaxc.ARPA> mkhaw@teknowledge-vaxc.UUCP (Michael Khaw) writes:
>I forgot to add that my system runs Ultrix 1.2
>
>To expand a bit more, what if I make the "b" partition *partially* overlap
>the "a" partition, and use /etc/newfs to build a 1-cylinder filesystem on
>"a" and use "b" for swapping/paging -- am I asking for trouble?
>
>Mike Khaw

We are running Ultrix 2.0 and I have had no trouble placing
a raw database partition in a chunk of disk that partially
overlays partition a.  I build a file system on partition a
so there would be a valid superblock, built my partition
tabke with /etc/chpt, and then proceded to clobber most of
the file system with my DBMS.  Since I never mess with the
file system and the DBMS cannot overwrite the partition
table at the beginning, all is well.

	-- Art Z.
--
	-- Art Zemon
	   FileNet Corporation
	   Costa Mesa, California
	   ...!hplabs!felix!zemon