Date: Sun, 17 Aug 2003 10:14:18 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Hari Bhaskaran <subscr@spider.netmails.net> Cc: freebsd-questions@freebsd.org Subject: Re: vinum config info stays intact during reinstall? Message-ID: <20030817004418.GE4494@wantadilla.lemis.com> In-Reply-To: <20030816225114.GA6528@poecilotheria.netmails.net> References: <20030816225114.GA6528@poecilotheria.netmails.net>
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On Saturday, 16 August 2003 at 17:51:14 -0500, Hari Bhaskaran wrote:
> Hi,
>
> I reinstalled one of my machines that had vinum running
> (wiped & installed 5.1) and vinum was able to pickup the
> drives/plexes etc right after I started vinum. Can I rely
> on this feature?
You should be able to. Having backups does no harm, though.
> or should I use resetconfig & create again?
NO! To quote the man page:
The resetconfig command completely obliterates the vinum confi=
gu-
ration on a system. Use this command only when you want to co=
m-
pletely delete the configuration.
=46rom the tutorial at http://www.vinumvm.org/cfbsd/vinum.pdf:
o Do not use the resetconfig command unless you genuinely don't want to see=
any
of your configuration again. There are other alternatives, such as rm, w=
hich
removes individual objects or groups of objects.
> If vinum stores its info somewhere hidden in the swap, I would have
> expected it to disappear after a reinstall ( I didn't re-create
> slices or partitions, left them as they are during the re-install).
It doesn't use swap. Again, from the tutorial:
Configuring Vinum
-----------------
Vinum maintains a configuration database that describes the objects known t=
o an
individual system. You create the configuration database from one or =
more
configuration files with the aid of the vinum utility program. Vinum store=
s a
copy of its configuration database on each Vinum drive. This databas=
e is
updated on each state change, so that a restart accurately restores the s=
tate
of each Vinum object.
Greg
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