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From: Nils Juergens <nils@muon.de>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] Best practice for lvm on raid-5
Date: Mon Feb  2 11:22:02 2004	[thread overview]
Message-ID: <20040202162025.GA27150@muon.de> (raw)
In-Reply-To: <20040202153506.GN5191@deepthought.hausboot.org>

On Mon, 02.02.04, Jens Hoffrichter <joho@hausboot.org> wrote:

> Currently I have /dev/md0 as my only physical volume, but this will lead
> to problems if I am going to expand the raid 5 by adding another 80 GB
> harddrive to (as pvresize is not implemented again yet, as I understand).

Unless I am mistaken, it is not even possible to expand /dev/md0 by adding
another drive in the first place. And because linux software raid has
no way of knowing which blocks are in use and which are not, i do not see
how this could ever be possible.

If you add another array (raid1 or raid5) as /dev/md1, you can vgextend your
VG.

cheers,

Nils

-- 
Nils Juergens  | nils@muon.de | icq 7090774
Having problems sending big files over the net?
Try out Efisto (http://efisto.rnbhq.org).

  reply	other threads:[~2004-02-02 11:22 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-02 10:36 [linux-lvm] Best practice for lvm on raid-5 Jens Hoffrichter
2004-02-02 11:22 ` Nils Juergens [this message]
2004-02-02 13:30   ` Jens Hoffrichter
2004-02-02 14:37 ` Chris Cox

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