Hello! Is anyone using windows2003 hvm in production? I mean with open source xen (3.x). Or it''s useless because of 10mbit network limit and poor disk I/O? I set up Centos5 with xen 3.0.3 and 2.6.18-8.1.15.el5xen kernel on my AMD X2, ASUS, 4GB RAM system, 2x320 WD sata. I use gentoo as PV DomU firewall for other DomUs with multiple bridge setup. All DomUs disk backends are images on lvm partition sitting on md raid1 mirror. For testing purposes I started 2 Ubuntu (one pv 32bit, pae enabled, other hvm 32bit), Gentoo Firewall (pv,64bit) and Windows 2003 server (hvm,32bit). I made some all networks stress with ping multiple packet sizes and disk write stress with dd. I discovered, that when I do some intensive disk writes with dd within Dom0 or in any pv DomUs my win2003 server becomes not reachable (visible with xm list, but with state ------, no network, no vnc access, no sdl window (if I use sdl) ). For example: dd if=/dev/zero of=./bigfile bs=512k count=16000 - this command in my Dom0 leads to win2003 hvm crash, xm destroy and xm create brings it back dd if=/dev/zero of=./bigfile bs=512k count=2000 - his command in my DomU leads to host not reachable for a couple of seconds, then win2003 hvm recovers. At the same time all other DomUs (both pv and hvm) suffer no single ping reply loss. What could be a problem? Do I need to put win2003 image on a separate partition? andris _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Thu, Nov 08, 2007 at 04:07:38PM +0200, Andris wrote:> > I set up Centos5 with xen 3.0.3 and 2.6.18-8.1.15.el5xen kernel on my > AMD X2, ASUS, 4GB RAM system, 2x320 WD sata. > I use gentoo as PV DomU firewall for other DomUs with multiple bridge > setup. All DomUs disk backends are images on lvm partition sitting on md > raid1 mirror. > For testing purposes I started 2 Ubuntu (one pv 32bit, pae enabled, > other hvm 32bit), Gentoo Firewall (pv,64bit) and Windows 2003 server > (hvm,32bit). > I made some all networks stress with ping multiple packet sizes and disk > write stress with dd. > I discovered, that when I do some intensive disk writes with dd within > Dom0 or in any pv DomUs my win2003 server becomes not reachable (visible > with xm list, but with state ------, no network, no vnc access, no sdl > window (if I use sdl) ).You should try again once centos 5.1 got created from upstream rhel 5.1 , it comes with a redhadish xen3.1.1 . Wondering what the license of the redhat para-drivers will be once they are available. Christian _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Christian Horn wrote:> You should try again once centos 5.1 got created from upstream rhel 5.1 , > it comes with a redhadish xen3.1.1 . > > Wondering what the license of the redhat para-drivers will be once > they are available. > > > Christian > >CentOS 5.1 is not yet available, will be at the end of november. I''ts probably the solution. Just trying to experiment. I Put win2003 on another separate LVM volume, but on same RAID1 partition. It works fine when I do disk I/O intensive jobs form Dom0 and pv DomU''s, but become unreachable when I include hvm domain stress now. The good is, that it recovers. It seems to me, that qemu drivers cannot handle well such I/O load. andris _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Andris wrote:> Christian Horn wrote: > >> You should try again once centos 5.1 got created from upstream rhel 5.1 , >> it comes with a redhadish xen3.1.1 . >> >> > > CentOS 5.1 is not yet available, will be at the end of november.You could always rebuilt RH''s RPM yourself. 2 SRPMs should be enough: kernel-2.6.18-53.el5.src.rpm and xen-3.0.3-41.el5.src.rpm, and install 3 resulting RPMs : kernel-xen, xen-libs, xen. Regards, Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Andris wrote:> Christian Horn wrote: >> You should try again once centos 5.1 got created from upstream rhel 5.1 , >> it comes with a redhadish xen3.1.1 . >> >> Wondering what the license of the redhat para-drivers will be once >> they are available. >> >> >> Christian >> >> > > CentOS 5.1 is not yet available, will be at the end of november. I''ts > probably the solution. > Just trying to experiment. > I Put win2003 on another separate LVM volume, but on same RAID1 > partition. It works fine when I do disk I/O intensive jobs form Dom0 and > pv DomU''s, but become unreachable when I include hvm domain stress now. > The good is, that it recovers. > It seems to me, that qemu drivers cannot handle well such I/O load. > > andris > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >Sorry Andris, but RHEL 5.1 it is available from last week .... see this: http://groups.google.com/group/VGLUG/browse_thread/thread/745350dd6f867f1a/82e58c5e2b2ace8e -- CL Martinez carlopmart {at} gmail {d0t} com _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users