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From: Jon Bendtsen <jon+lvm@silicide.dk>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] lvm and md
Date: Fri Mar  7 09:42:02 2003	[thread overview]
Message-ID: <3E68BDA5.175E6C6C@silicide.dk> (raw)
In-Reply-To: 3E6803F3.5060507@exavio.com.cn

Peter Yao wrote:
> 
> Should we build lvm volumns on top of soft raid(md) or build md on top
> of lvm volumns?
> I prefer to build md on top of lvm volumns because lvm can hide the
> hardware details from md. Just want to know how do you think about this.
> Or any URLs? Thanks.

why would you need to hide the hardware details from md ?
The way i do it is to md 2 disks together into a pair, and
then pvcreate it and add it to my VG. That way i can get 
more and more disks into the system. I have thought about
creating 2 VG's, and then run md ontop of that, but it's more
work, as you would have to resize 2 LV's, and besides, a harddisk
failure might trash one of your VG's. Meaning more repair work.



JonB

  parent reply	other threads:[~2003-03-07  9:42 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-07  8:01 [linux-lvm] lvm and md Peter Yao
2003-03-07  8:11 ` Heinz J . Mauelshagen
2003-03-07  9:42 ` Jon Bendtsen [this message]
2003-03-09 19:35   ` Peter Yao
2003-03-10  2:05     ` Luca Berra
2003-03-10  3:05     ` William Blunn
2003-03-10  3:29       ` William Blunn
2003-03-10  8:17         ` [linux-lvm] not enough free/allocatable physical extents to extend logical volume Ron Arts
2003-03-10  3:50     ` [linux-lvm] lvm and md Jon Bendtsen
2003-03-09 16:59 ` Stephan Austermuehle
  -- strict thread matches above, loose matches on Subject: below --
2003-03-07  8:09 Koch, Steffen
2003-03-10  6:57 Rechenberg, Andrew
2003-03-20  3:36 Rocky Lee
2003-03-20  4:04 ` jon+lvm
2003-03-20 19:45 Rocky Lee
2003-03-21  2:22 ` jon+lvm
2003-03-21  9:54 ` Dale J. Stephenson

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