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Re: [Xen-users] Linux software RAID1 (Dom0 or domU)?

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Linux software RAID1 (Dom0 or domU)?
From: "Ulrich Windl" <ulrich.windl@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 02 Feb 2007 10:13:59 +0100
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On 1 Feb 2007 at 9:29, Marduk wrote:

> Just wondering if anyone has had any experience with this.
> 
> I'm thinking about setting up a 2-drive RAID1 set using Linux software
> RAID.  The question is, as far as performance is concerned, which is
> better:
> 
>       * Let dom0 handle the RAID and pass the volume to domU or
>       * Pass both drives to domU and let it handle the RAID.

Hi!

If you think about the reasons of having a RAID1, which domains would be 
affected 
by a hardware failure, and what would you have to do then? If you think about 
it, 
everything seems logical. To avoid needless work and overly complex 
configurations, I'd mirror in Dom0 and export mirrored devices to DomU.

Regards,
Ulrich


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