Re: [Xen-users] Probably very very stupid question regarding passthrough....

["Nick Couchman" <Nick.Couchman@xxxxxxxxx>]

On Sat, 2011-04-09 at 19:22 +0100, Simon Hobson wrote:
> Enrico Valsecchi wrote:
> 
> >Scenario:
> >
> >- 1 Server with xen and one FC HBA
> >
> >- 1 Server with Openfiler and one FC HBA, with scst_tgt enable.
> >
> >Now, I want get available scsi lun into more that one fully virtualized 
> >DomU's
> >
> >Way for it are passthrough, if I have understand.
> >
> >My little question are if same phisic FC HBA can are used by multiple
> >DomU without problem or if one phisic hba must used by only one DomU
> 
> A device can only be passed through to one DomU. You probably need to 
> access the SCSI LUN(s) in Dom0 and present them as block device to 
> the DomUs
> 

Xen also supports NPIV.  Assuming your SAN and FC switches are NPIV
enabled, this is a good way to get multiple domUs access to the FC HBA.

-Nick



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