Xen users - Aug 2008 - exporting SAS card for using external device

Hi There,

I was wondering if it is possible to export a LSI SAS card (with
external input) into the windows xp VM I have setup, The plan is to use
a tape drive on it -- has anyone done this before or could point me to
any info?

Debian stable, Xen 3.0.3-1-amd64

Many thanks
Mark

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Hi Mark,

For a Windows-based HVM, your best bet is to do some sort of Intel VT-d
or AMD IOMMU PCI passthrough.  That would require a motherboard that''s
VT-d aware (e.g. Intel DQ35JO), and a Xen kernel that''s VT-d aware
(i.e. Xen 3.2.1).

If you''re doing what I think you''re doing (i.e. scenario where
getting
another physical server dedicated for backup; using a VM to do so), you
can either use Amanda (Open Community) in a dom0 or PV domU.  But if
your heart is set on HVM, you''ll need new hardware most likely in the
first place to do PCI passthrough.

Good luck!

Mark Adams wrote:

Hi There,

I was wondering if it is possible to export a LSI SAS card (with
external input) into the windows xp VM I have setup, The plan is to use
a tape drive on it -- has anyone done this before or could point me to
any info?

Debian stable, Xen 3.0.3-1-amd64

Many thanks
Mark

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http://lists.xensource.com/xen-users

-- 
Daniel Kao
Übermind, Inc.
Seattle, WA, U.S.A.


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On 13/08/2008 17:53, Mark Adams wrote:
> I was wondering if it is possible to export a LSI SAS card (with
> external input) into the windows xp VM I have setup, The plan is to use
> a tape drive on it -- has anyone done this before or could point me to
> any info?
You''ll need a VT-i capable CPU for HVM windows, and a VT-d capable 
motherboard to allow HVM PCI passthrough, a newer version of Xen (3.2.1 
or later?) a couple of sacrificial SCSI goats would probably come in 
handy too ;-)




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