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 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
No, we don''t support I_T nexus registration; the model is a simple non-shared SCSI bus. Paul> -----Original Message----- > From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel- > bounces@lists.xensource.com] On Behalf Of Soubir Acharya > Sent: 30 January 2011 01:53 > To: xen-devel@lists.xensource.com > 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 > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
> > No, we don''t support I_T nexus registration; the model is a simplenon-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@lists.xensource.com [mailto:xen-devel- > > bounces@lists.xensource.com] On Behalf Of Soubir Acharya > > Sent: 30 January 2011 01:53 > > To: xen-devel@lists.xensource.com > > 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 > > > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@lists.xensource.com > > http://lists.xensource.com/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
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?>> True, but not as simple as using files out of dom0 as storage.> James >Thanks. There is no reason the XCP driver could not do the same, right? Shared disks would still be "unsupported" but it would just work on a single physical node. I think the configuration is useful to train/demo/play around with Windows configurations requiring shared disks. Oracle RAC, Fail-over clustering to name a few. Even a single node cluster is a valid configuration for learning. Soubir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
I guess that succeeding the ops may affect the slew of WHQL tests that the storage driver is expected to pass. It''d be kind of nice to make it work ''properly'' such that a disk image passed into multiple VMS could be shared via MSCS, and we could still pass WHQL. I''ll stick it on the bottom of my ''have a look at this'' list. Paul> -----Original Message----- > From: Soubir Acharya [mailto:acharya@kubisys.com] > Sent: 01 February 2011 14:42 > To: James Harper > Cc: Paul Durrant; xen-devel@lists.xensource.com > Subject: Re: [Xen-devel] XCP PV driver > > 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? > >> True, but not as simple as using files out of dom0 as storage. > > James > > > Thanks. There is no reason the XCP driver could not do the same, > right? > Shared disks would still be "unsupported" but it would just work on > a > single physical node. > I think the configuration is useful to train/demo/play around with > Windows configurations requiring shared disks. > Oracle RAC, Fail-over clustering to name a few. > Even a single node cluster is a valid configuration for learning. > > Soubir >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On 2/1/2011 9:49 AM, Paul Durrant wrote:> I guess that succeeding the ops may affect the slew of WHQL tests that the storage driver is expected to pass. > It''d be kind of nice to make it work ''properly'' such that a disk image passed into multiple VMS could be shared via MSCS, and we could still pass WHQL. I''ll stick it on the bottom of my ''have a look at this'' list.Good point. One option would be to return failure as default (so that we are OK with WHQL), and then turn the feature on via a registry setting or similar? I can also research the WHQL requirement for disk arbitration. Soubir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
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@lists.xensource.com [mailto:xen-devel- >>> bounces@lists.xensource.com] On Behalf Of Soubir Acharya >>> Sent: 30 January 2011 01:53 >>> To: xen-devel@lists.xensource.com >>> 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 >>> >>> >>> _______________________________________________ >>> Xen-devel mailing list >>> Xen-devel@lists.xensource.com >>> http://lists.xensource.com/xen-devel >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
> > Is the latest GP PV driver, signed and will it install on 2008 without > requiring "bcdedit driver signing off"? >It''s test signed. You have to turn testsigning on for 64 bit windows. James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Tue, 2011-02-01 at 22:21 +0000, James Harper wrote:> > > > Is the latest GP PV driver, signed and will it install on 2008 without > > requiring "bcdedit driver signing off"? > > > > It''s test signed. You have to turn testsigning on for 64 bit windows.Is that process documented somewhere? I was trying to install gplpv drivers on 2008r2 yesterday to try and repro a backend bug and couldn''t get it to work. http://wiki.xen.org/xenwiki/XenWindowsGplPv/Installing seems to cover an older more manual installation process which didn''t appear to apply to the .msi I downloaded. There is a link to an MS document on how to actually test sign a driver but nothing on how to allow test signing in the OS. The link is now a redirect on the MS end so perhaps the previous content of that link was more useful? Pressing F8 on boot and disabling driver signing didn''t help, the installer still aborted with a message about turning off driver signing. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
> > On Tue, 2011-02-01 at 22:21 +0000, James Harper wrote: > > > > > > Is the latest GP PV driver, signed and will it install on 2008without> > > requiring "bcdedit driver signing off"? > > > > > > > It''s test signed. You have to turn testsigning on for 64 bitwindows.> > Is that process documented somewhere? I was trying to install gplpv > drivers on 2008r2 yesterday to try and repro a backend bug andcouldn''t> get it to work.bcdedit /set testsigning on or something like that> > http://wiki.xen.org/xenwiki/XenWindowsGplPv/Installing seems to coveran> older more manual installation process which didn''t appear to apply to > the .msi I downloaded. There is a link to an MS document on how to > actually test sign a driver but nothing on how to allow test signingin> the OS. The link is now a redirect on the MS end so perhaps theprevious> content of that link was more useful? > > Pressing F8 on boot and disabling driver signing didn''t help, the > installer still aborted with a message about turning off driversigning.>Yeah. Better to not install than to install and break. James _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Wed, Feb 02, 2011 at 08:34:25AM +0000, Ian Campbell wrote:> On Tue, 2011-02-01 at 22:21 +0000, James Harper wrote: > > > > > > Is the latest GP PV driver, signed and will it install on 2008 without > > > requiring "bcdedit driver signing off"? > > > > > > > It''s test signed. You have to turn testsigning on for 64 bit windows. > > Is that process documented somewhere? I was trying to install gplpv > drivers on 2008r2 yesterday to try and repro a backend bug and couldn''t > get it to work. >I''ve been planning to update Gplpv instructions on the wiki, since that''s very common source of questions on xen-users and on irc.. -- Pasi> http://wiki.xen.org/xenwiki/XenWindowsGplPv/Installing seems to cover an > older more manual installation process which didn''t appear to apply to > the .msi I downloaded. There is a link to an MS document on how to > actually test sign a driver but nothing on how to allow test signing in > the OS. The link is now a redirect on the MS end so perhaps the previous > content of that link was more useful? > > Pressing F8 on boot and disabling driver signing didn''t help, the > installer still aborted with a message about turning off driver signing. > > Ian. > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Wed, 2011-02-02 at 08:41 +0000, James Harper wrote:> bcdedit /set testsigning on > > or something like thatThanks, precisely that command plus a reboot is what was needed. Ian.> > > > > http://wiki.xen.org/xenwiki/XenWindowsGplPv/Installing seems to cover > an > > older more manual installation process which didn''t appear to apply to > > the .msi I downloaded. There is a link to an MS document on how to > > actually test sign a driver but nothing on how to allow test signing > in > > the OS. The link is now a redirect on the MS end so perhaps the > previous > > content of that link was more useful? > > > > Pressing F8 on boot and disabling driver signing didn''t help, the > > installer still aborted with a message about turning off driver > signing. > > > > Yeah. Better to not install than to install and break. > > James_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Wed, 2011-02-02 at 09:51 +0000, Pasi Kärkkäinen wrote:> On Wed, Feb 02, 2011 at 08:34:25AM +0000, Ian Campbell wrote: > > On Tue, 2011-02-01 at 22:21 +0000, James Harper wrote: > > > > > > > > Is the latest GP PV driver, signed and will it install on 2008 without > > > > requiring "bcdedit driver signing off"? > > > > > > > > > > It''s test signed. You have to turn testsigning on for 64 bit windows. > > > > Is that process documented somewhere? I was trying to install gplpv > > drivers on 2008r2 yesterday to try and repro a backend bug and couldn''t > > get it to work. > > > > I''ve been planning to update Gplpv instructions on the wiki, > since that''s very common source of questions on xen-users and on irc..Thanks. I changed the note about test signing to: __''''''NOTE:''''''__ x64 versions of Vista and Server 2008 require signed drivers. The GPLPV drivers are only test signed. In order to use them you need to enable test signing by running "bcdedit /set testsigning on" and rebooting. which I hope is somewhat accurate. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Wed, Feb 02, 2011 at 10:08:58AM +0000, Ian Campbell wrote:> On Wed, 2011-02-02 at 09:51 +0000, Pasi Kärkkäinen wrote: > > On Wed, Feb 02, 2011 at 08:34:25AM +0000, Ian Campbell wrote: > > > On Tue, 2011-02-01 at 22:21 +0000, James Harper wrote: > > > > > > > > > > Is the latest GP PV driver, signed and will it install on 2008 without > > > > > requiring "bcdedit driver signing off"? > > > > > > > > > > > > > It''s test signed. You have to turn testsigning on for 64 bit windows. > > > > > > Is that process documented somewhere? I was trying to install gplpv > > > drivers on 2008r2 yesterday to try and repro a backend bug and couldn''t > > > get it to work. > > > > > > > I''ve been planning to update Gplpv instructions on the wiki, > > since that''s very common source of questions on xen-users and on irc.. > > Thanks. I changed the note about test signing to: > __''''''NOTE:''''''__ x64 versions of Vista and Server 2008 require > signed drivers. The GPLPV drivers are only test signed. In order > to use them you need to enable test signing by running > "bcdedit /set testsigning on" and rebooting. > which I hope is somewhat accurate. >That''s better. The really important point is to reboot *before* installing gplpv. testsigning needs to be enabled when installing gplpv drivers, and it gets enabled on reboot. -- Pasi _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel