From: Luca Berra <bluca@comedia.it>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] Adding a mirror after-the-fact
Date: Wed, 15 Aug 2001 23:30:04 +0200 [thread overview]
Message-ID: <20010815233003.A2260@colombina.comedia.it> (raw)
In-Reply-To: <20010815105623.A29693@sistina.com>; from mauelshagen@sistina.com on Wed, Aug 15, 2001 at 10:56:23AM +0200
On Wed, Aug 15, 2001 at 10:56:23AM +0200, Heinz J . Mauelshagen wrote:
> On Tue, Aug 14, 2001 at 05:11:59PM -0400, Jason Tackaberry wrote:
> > I know this isn't strictly an LVM question, but ...
> >
> > Suppose I have a volume group with 1 physical volume, say a 9GB disk.
> > Now, after some time, I decide I want to mirror this VG with another 9GB
> > disk. What options do I have? AFAICS, the only way to do this would be
> > to start from scratch? This is a pretty simple and presumably common
> > thing to want to do, so I hope I'm wrong. :)
>
> Yes, you are (with 2.4 kernels) ;-)
>
> You could either mirror the whole disk using MD *without* persistent superblocks
>
raid superblock is at end of disk, so you could also
create an lv with only the last PE of the PV and NEVER USE it
L.
--
Luca Berra -- bluca@comedia.it
Communication Media & Services S.r.l.
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next prev parent reply other threads:[~2001-08-15 21:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-14 21:11 [linux-lvm] Adding a mirror after-the-fact Jason Tackaberry
2001-08-15 8:56 ` Heinz J . Mauelshagen
2001-08-15 13:13 ` Jason Tackaberry
2001-08-15 13:33 ` Werner John
2001-08-15 21:30 ` Luca Berra [this message]
2001-08-17 9:21 ` Heinz J . Mauelshagen
2001-08-19 19:20 ` Wolfgang Weisselberg
2001-08-20 2:49 ` Ted Deppner
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