Re: [Xen-devel] QLogic Fibre Channel HBA Support

[Wim Coekaerts <wim.coekaerts@xxxxxxxxxx>]

being able to share devices across domains in interesting... 
in particular for us ... I would hope that it will be possible to do at
some point.  

we have cluster filesystems that can run on each domain. as long as we
have persistent shared block devices we should be fine.

in fact this way we can run a database in cluster mode, as we require
shared disk. without it would limit the usability for xen there.

might not matter to most but I'm playing around with it for the db to
see if this is useful for us. 

there is a lot of potential

On Mon, Jul 05, 2004 at 11:24:26AM -0700, Steve Traugott wrote:
> On Sun, Jul 04, 2004 at 09:50:57PM +0100, Ian Pratt wrote:
> > > I'd need to use the iSCSI in domain 0 approach (other people's
> > > guests...), haven't tried it due to lack of hardware targets, didn't get
> > > warm fuzzies from Ardistech's code -- you've had no problems with it
> > > though?
> > 
> > I've mainly used a NetApp filer h/w target, so I haven't really
> > got enough experience to says whether the Ardistech code is
> > stable or not. There's always enbd, nbd, gnbd which are all
> > simple enough to believe that they work...
> 
> I can see how that works using initrd to mount *nbd as root in guest
> domains, but what about using *nbd in dom0 and then allocating that as
> VDs to the other domains?  Is that supposed to work?  I remember
> something about needing physical raw partitions for VBDs, at least under
> 1.2.  Am I missing something?
> 
> (For anyone curious, if using *nbd I would need to keep it in dom0,
> rather than in each guest, for both security and maintainability.  For a
> public Xenoserver, uid 0 on the guests is assumed to be untrusted.)
> 
> Steve
> -- 
> Stephen G. Traugott  (KG6HDQ)
> UNIX/Linux Infrastructure Architect, TerraLuna LLC
> stevegt@xxxxxxxxxxxxx 
> http://www.stevegt.com -- http://Infrastructures.Org 
> 
> 
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