Date: Fri, 7 Nov 1997 18:03:52 -0600 (CST) From: Jay Nelson <jdn@qiv.com> To: "Matthew D. Fuller" <fullermd@futuresouth.com> Cc: Richard Foulk <richard@pegasus.com>, stable@FreeBSD.ORG Subject: Re: Partitioning Message-ID: <Pine.BSF.3.96.971107175612.934A-100000@acp.qiv.com> In-Reply-To: <Pine.BSF.3.96.971107021928.27131K-100000@shell.futuresouth.com>
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I'm _really_ interested in knowing how you reduced an AIX file system
on the fly without blowing your feet off. The "official" way to reduce
an AIX file system is a restore from a mksysb.
I'd also like to see the journaled file system complete for FreeBSD,
but I don't have the skill -- or the time to learn. I agree with
Jordan. It's a far bigger job than it would seem. And, after all, I'm
happy with what I've got -- so why tinker with it?
-- Jay
On Fri, 7 Nov 1997, Matthew D. Fuller wrote:
> On Thu, 6 Nov 1997, Richard Foulk wrote:
>
> > They call it their Journalled file system. I don't think that has
> > anything to do with it's ability to enlarge a partition on the fly.
> >
> > Journalling, the keeping of an audit-trail of all disk writes, makes
> > for a more secure filesystem that can be cleaned up more thoroughly and
> > quickly after a crash.
> >
> > Back to the main question; I don't see any reason why the BSD file system
> > couldn't be extended to allow for on-the-fly expansion of partitions.
> > Toss in a pointer to the new space, when you feel like adding some,
> > initialize it and continue on.
> That's not the tough part. It's essentially the same coding method as
> ccd's.
> The tough part is not just expanding, but SHRINKING partition on the fly.
> On the AIX system I admin'ed, we once shrunk /usr by 80 megs to put 80
> megs more in /home. THAT takes a little more coding and failsafes. It'd
> still be a nice feature to have, tho.
>
>
> *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
> | FreeBSD; the way computers were meant to be |
> * "The only reason I'm burning my candle at both ends, is *
> | that I haven't figured out how to light the middle yet."|
> * fullermd@futuresouth.com :-} MAtthew Fuller *
> | http://keystone.westminster.edu/~fullermd |
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>
-- Jay
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