Date: Thu, 7 Dec 2000 20:42:33 -0400 (AST) From: The Hermit Hacker <scrappy@hub.org> To: "Rogier R. Mulhuijzen" <drwilco@drwilco.nl> Cc: growfs@tomsoft.com, freebsd-current@FreeBSD.ORG Subject: Re: growfs(8) for FreeBSD Message-ID: <Pine.BSF.4.21.0012072040400.1558-100000@thelab.hub.org> In-Reply-To: <4.3.2.7.0.20001207213006.00be4600@mail.drwilco.net>
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Erk, I fear you mis-understand ... FreeBSD has a feature called 'VINUM',
which is a volume manager ... basically, it allows you to create RAID or
Stripe'd file systems (or concat ones) ... what growfs allows is someone
to add an n+1 drive to their RAID/Stripe and increase the size of the file
system by that drive, without having to backup the drive, re-format and
then restore ...
I've used Solaris' version and have been much waiting for it to become
available under FreeBSD ...
On Thu, 7 Dec 2000, Rogier R. Mulhuijzen wrote:
> Is it also capable of shrinking filesystems? I've sometimes wanted to grow
> my /var or / slice using space freed by shrinking /usr (on a default
> partitioned disk). Up to now I've solved it through symlinks, but that
> doesn't really deserve the beauty award. I'd imagine a lot of new users
> wouldn't mind being able to change partition size on a fully configured
> machine without having to resort to backup, reslice, restore....
>
> Anyways, sounds like a very handy tool already!
>
> Just my $0,02
>
> DocWilco
>
> At 10:34 7-12-00 -0800, you wrote:
> >Hi,
> >
> >Due to vinum it is no problem to add disks and grow your volumes but up to
> >now you couldn't easily make use of that new space for a file system, except
> >using sequence of ufsdump/newfs/ufsrestore or something similar.
> >
> >Thomas (tomsoft@freebsd.org) and me (chm@freebsd.org) have written a growfs(8)
> >for FreeBSD. Currently we can only grow unmounted file systems (in a clean
> >state) without any active snapshots inside. It is foreseen to enhance
> >growfs to
> >grow mounted file systems as well, and handle active snapshots correctly.
> >This requires some infrastructure which is then only available in FreeBSD-5,
> >whilst the current design runs also happily on FreeBSD-4 and FreeBSD-3
> >(tested) and possibly even on FreeBSD-2 (untested).
> >
> >To help us gathering the needed data for fixing bugs in growfs we additionally
> >wrote ffsinfo(8), a (very) extended version of dumpfs.
> >
> >We've sent a couple of snapshots of our code to Kirk McKusick and to Greg
> >Lehey. Greg also volunteered :-) for reviewing the code. We also maintain
> >some sort of (for some contractual reasons unilaterally) contact with Don
> >Coleman who is doing the same thing for BSD/OS.
> >
> >--
> >Ciao
> >
> >
> > Christoph &:-)
> >
> >
> >
> >M$: Where do you want to go today?
> >Linux: Where do you want to go tomorrow?
> >FreeBSD: Are you guys comming, or what?
> >
> >
> >To Unsubscribe: send mail to majordomo@FreeBSD.org
> >with "unsubscribe freebsd-current" in the body of the message
>
>
>
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>
Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
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