Re: Xen, VT, and RAID

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Dec 22, 2006 at 11:17:15PM -0500, Steven M. Bellovin wrote:
> On Fri, 22 Dec 2006 20:26:19 +0100
> Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:
> 
> > On Thu, Dec 21, 2006 at 02:00:46PM -0500, Steven M. Bellovin wrote:
> > > I'm putting together a new server that will use RAIDframe for
> > > RAID-1 on two drives.  I plan to run FreeBSD in an fdisk partition
> > > using the VT support in Xen 3.  The question is what do I do about
> > > RAID and that partition?  
> > > 
> > > Once choice is to do nothing, and use the corresponding space on the
> > > second drive for something else.  A second is to use FreeBSD's geom
> > > mirror on that part of both drives.  I have no idea if that will
> > > work. A third choice -- is there a third choice?
> > 
> > Yes, use raidframe in dom0 and use the corresponding raid device for
> > FreeBSD
> > 
> Now I'm very confused -- I thought that I had to use an entire fdisk
> partition -- i.e., more or less a part of a raw disk -- for VT-type Xen
> domUs.

No, you can use the same kind of storage as for non-VT guests: a physical
partition or a file

>  Or are you saying make that fdisk partition a RAID1 on both
> drives?

Yes, that's what I meant. But it's not the only choise.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--