Re: Xen, VT, and RAID

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

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


                --Steve Bellovin, http://www.cs.columbia.edu/~smb