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Re: [Xen-devel] XCP PV driver

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] XCP PV driver
From: Soubir Acharya <acharya@xxxxxxxxxxx>
Date: Tue, 01 Feb 2011 12:59:45 -0500
Cc: Paul Durrant <Paul.Durrant@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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Is the latest GP PV driver, signed and will it install on 2008 without requiring "bcdedit driver signing off"?

Soubir

On 2/1/2011 8:27 AM, James Harper wrote:
No, we don't support I_T nexus registration; the model is a simple
non-shared
SCSI bus.

GPLPV tells windows that these SCSIOP's are supported (just returns
STATUS_SUCCESS), but they don't actually do anything. As Paul implies
there is no mechanism to pass such a message back to the actual device
(which could just be a file on disk anyway). It doesn't block anything
else from accessing the device.

Maybe you could use iSCSI in the DomU instead?

James

   Paul

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Soubir Acharya
Sent: 30 January 2011 01:53
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] XCP PV driver

The XCP PV driver does not like the SCSI Op codes for
RESERVE/RELEASE
and possibly RESET.

I am trying to install Microsoft Failover Clustering on a HVM with
the
XCP PV drivers installed and disk arbitration is broken.

Is there a registry setting or otherwise to enable this behavior?

Or can code be changed to return success if these opcodes are seen
in
the CDB?

I am fairly certain that this will make clustering work and serve as
a
valuable tool to play with clustered Windows configurations.

Soubir


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