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Re: [Xen-devel] Exporting SCSI Tape devices to HVM DomU

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Exporting SCSI Tape devices to HVM DomU
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sun, 12 Aug 2007 18:16:11 +0300
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On Sun, Aug 12, 2007 at 10:17:56PM +1000, James Harper wrote:
> We are currently using VMWare Server (with Debian as the host) to
> perform a restore test service to clients. Basically we take one of
> their recent backups, and restore it into a VMWare VM to confirm that
> their backup will produce a working system on restore.
> VMWare allows exporting the tape drive device into the VM, and so
> something like the Veritas Backup Exec IDR (Intelligent Disaster
> Recovery - you build a CD beforehand and just boot that in the event of
> a disaster and it asks for the most recent tape and rebuilds the system)
> "just works". There are some very minor problems with going from a
> physical system to a virtual system, but the process works well. After
> we have restored the system we then provide access (remote or local as
> required) to the client for them to confirm that everything looks okay.
> Is exporting SCSI "generic" devices (eg tapes, scanners, cd burners,
> etc) on the Xen roadmap at all? I'm pretty sure it isn't supported
> currently but please correct me if I'm wrong!

I think there were patches some time ago that made exporting whole
SCSI (or FC) HBA from dom0 to domU possible. 

I don't know if/when single LUN exporting will be supported.. 

Check the list archives for details..

-- Pasi

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