Hi! Does anybody tried or manage to setup a cluster of w2k3 server in Xen HVM environment ? I''m trying to do this for a few days without success. I have a problem with quorum disk. Best regards, Marek Kedziora _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
AFAIK, xen (at least up until 3.1.1) HVM makes use of the buffer cache for disk i/o, and I presume that windows clustering would rely on having direct access to the disk. That might be a contributing factor. James> -----Original Message----- > From: xen-users-bounces@lists.xensource.com [mailto:xen-users- > bounces@lists.xensource.com] On Behalf Of Kedziora Marek > Sent: Saturday, 2 February 2008 19:45 > To: xen-users@lists.xensource.com > Subject: [Xen-users] w2k3 cluster on xen > > Hi! > > Does anybody tried or manage to setup a cluster of w2k3 server in Xen HVM > environment ? I''m trying to do this for a few days without success. I have > a problem with quorum disk. > > Best regards, > Marek Kedziora > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Thanks James! Is there a way to turn off caching in Xen ? Because that''s exactly my problem - one quorum disk on both nodes behave like two different disks. I turned off all caching that I found: - on SAN virtual partition - using sdparm in dom0 But it not helped. Best regards Marek Kedziora _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> Thanks James! Is there a way to turn off caching in Xen ? Because that''s > exactly my problem - one quorum disk on both nodes behave like two > different disks. I turned off all caching that I found: > - on SAN virtual partition > - using sdparm in dom0 > But it not helped.There were some patches to qemu to allow this. If you can handle a bit of C it''s not that hard to implement. You could also try my GPL''d PV drivers for Windows, unless the caching matters very early on in the boot processes (I doubt it). Assuming testing goes well, I''m going to do another binary release tonight as I''ve just fixed up a bug where it only worked against a 64 bit Dom0. I had fixed it up a few days ago, but the fix broke in the situation where Dom0 and DomU weren''t the same bit width and Dom0''s Xen drivers were < 3.1.1. So if you are running a 64 bit Dom0 then the 0.6.1 release should work, otherwise wait until I do the next release. James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> There were some patches to qemu to allow this. If you can handle a bit of > C it''s not that hard to implement. > > You could also try my GPL''d PV drivers for Windows, unless the caching > matters very early on in the boot processes (I doubt it). > > Assuming testing goes well, I''m going to do another binary release tonight > as I''ve just fixed up a bug where it only worked against a 64 bit Dom0. I > had fixed it up a few days ago, but the fix broke in the situation where > Dom0 and DomU weren''t the same bit width and Dom0''s Xen drivers were < > 3.1.1. > > So if you are running a 64 bit Dom0 then the 0.6.1 release should work, > otherwise wait until I do the next release.Thanks again! In the meantime I discover that my problem is that I can''t properly export SCSI devices to w2k3. Disks show in disk manager, I''m able to initialize them and make partitions, but formatting fails. It does not happen on ATA disks. I''ll make another thread on xen-users because it''s off-topic here. Best regards, Marek Kedziora _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users