search for: dunkley

Hello All, Does anyone know what is the current status of RHEL 5.2 x86_64 with respect to the maximum amount of RAM detected by the Xen 64 bit kernel (the one that shipped with Red Hat distribution ) In the following link https://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/en-US/RHEL510/Virtualization_Guide/ch-virt-hw-support.html it states that 32GB of RAM is the maximum amount of

My future plan currently looks like this for my VPS hosting solution, so any feedback would be appreciated: Each Node: Dell R210 Intel X3430 Quad Core 8GB RAM Intel PT 1Gbps Server Dual Port NIC using linux "bonding" Small pair of HDDs for OS (Probably in RAID1) Each node will run about 10 - 15 customer guests Storage Server: Some Intel Quad Core Chip 2GB RAM (Maybe more?) LSI

...it is at the top of the request list, I suspect it is probably a case of enough people asking and Citrix approving. http://www.xen.org/products/xen_roadmap.html Rob -----Original Message----- From: Ola.Torudbakken@Sun.COM [mailto:Ola.Torudbakken@Sun.COM] Sent: 09 September 2009 14:35 To: Robert Dunkley Subject: xen - rdma live migration support Hello, I´m a DE at Sun located at the European Design Center in Oslo, Norway, working on high-performance RDMA fabrics. What is the status of RDMA Live Migration support in Xen? From http://wiki.xensource.com/xenwiki/XenRoadMap it appears that it is...

Hello list; I´ve updated my windows 2k3 GPLPV drivers from 0.9.9 to 0.9.12-pre13. But now, i have two xen block devices; (of course, one of them is not working and is marked with the yellow exclamation). How can i fix it, or how can i uninstall the GPLPV drivers in order to make a clean install? Thanks Juan Pablo _______________________________________________ Xen-users mailing list

...latency = 30.8 us # qperf 192.168.10.160 rc_bi_bw rc_bi_bw: bw = 1.71 GB/sec The second result is bi directional, Gen4 on PCI-E V2 should get quite a lot better. Rob -----Original Message----- From: Jan Ruffing [mailto:ruffing@motama.com] Sent: 11 December 2008 16:18 To: Robert Dunkley Cc: Gilad Shainer; general@lists.openfabrics.org Subject: Re: [ofa-general] Infiniband performance Robert Dunkley wrote: > The newer gen4 20Gb cards get about 14-15Gbit/sec because of their better lower latency processing and support for higher bandwidth PCI-E 2.0 (PCI-E is not 100% efficient s...

I have been using the built in Xen Paravirt NIC drivers for paravirt networking and had bad performance until I disabled all offload setting on the bridge and paravirt nic (From Dom0). There are 2 related questions I have, where should I be tweaking the offload settings, the Dom0 Physical NIC, The Bridge or the DomU NIC? Which settings in particular tend to cause trouble? (I just disabled all of

Hi, I would like to ask the proper or recommended way of upgrading xen...? I started with 3.1.0 then upgraded to 3.2.1 but now I am not able to use the original system. Since I am not satisfied[*] with the current setup I would try to upgrade to 3.3.1 but it would be nice if something went wrong I could downgrade it to 3.2.x... It is a pitty that booting the previous xen image does not work

Hi, I would like to ask the proper or recommended way of upgrading xen...? I started with 3.1.0 then upgraded to 3.2.1 but now I am not able to use the original system. Since I am not satisfied[*] with the current setup I would try to upgrade to 3.3.1 but it would be nice if something went wrong I could downgrade it to 3.2.x... It is a pitty that booting the previous xen image does not work

I was wondering if anyone is running Quagga on Xen? What is throughput/latency like? Was looking for about a gig of mixed packet size BGP throughput. Hardware is Opteron 4 Way Quad cores, was thinking paravirt with a couple of dedicated cores and maybe the addition of Solarflare 10GB Direct IO NICs might give the required performance level but I am unsure. The other option is multi-queue Intel

Dear Xen users, I have a problem with "Xen 3.3.0". All domU (paravirt) only have "32 KB" of cache instead of "6144 KB" as listed in dom0. This is really noticeable under load since the system tends to be really slow. I did not have this problem with "Xen 3.2.1". I''m using the same domU configuration files for the new and the old installation.

I am trying to get PV drivers running on both Centos 5.1 and Centos 5.3 HVMs, my DomU is Centos 5.2 with Xen 3.31. For 5.1 I install the kmod-xenpv RPM but for 5.3 the drivers seem to be built-in. For the network drivers to work I had to unload the Realtek NIC driver and renamed its .ko files to stop it loading. Adding the Xen-Vnif alias to modprobe.conf then got the PV NICs working nicely (Much

I have an error in my dmesg system log about hpet not correctly enabling: hpet_acpi_add: no address or irqs in _CRS The same kernel without Xen enables it fine: hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 31 hpet0: 3 32-bit timers, 25000000 Hz hpet_resources: 0xfed00000 is busy Do I have to pass an additional boot option? (ACPI is already enabled) or is there

i''m reading up on numa usage. so far, i''ve enabled numa on my Xen box. @ Dom0 i see, xm dmesg | grep -i numa (XEN) Command line: ... numa=on ... (XEN) No NUMA configuration found i guess i need to ''configure'' numa. i''ve no clue how, and haven''t found the docs for it yet, despite looking. i found this old thread,

I am running a Xen HVM guest with netfront PV drivers. This is running SLES10 SP3 inside the guest. The Dom0 is also SLES10 SP3. Now I am trying to communicate from that HVM guest to a Windows Visa or also Windows 7 machine and I am getting really poor TCP performance. When tracing on the network traffic, I can see that no packets are dropped or missing or anything, but what happens is that the

Hello, I am trying to install Win2008 x64 on xen. However it always crashes with: 0x0000005b which from my research means incompatible CPU. Can anyone assist with this? How can I get x64 to work? cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : Quad-Core AMD Opteron(tm) Processor 2344 HE grep svm /proc/cpuinfo flags : fpu tsc msr pae mce cx8

Hi, we''re contemplating getting a large new server, where we will run a number of virtual servers. Are there any things we need to keep in mind in that case? Are there limitations on what a Xen system can manage? We''re talking about a 4 x Quad core CPU server with 64 GBs of RAM and a couple of terabytes of RAIDed SATA storage. -Morten (Re-sending this, as the first message

Hi, I am sucesfully running 2.6.30 xenified kernel: Machine DELL Optiplex 960 CPU intel E8400 8GB RAM Debian lenny 5.0 x64 Xen 3.4.1 rc11 + kernel 2.6.30.2 xenified thanks to howto from bderzhavets: http://bderzhavets.wordpress.com/2009/07/07/building-xenified-2-6-30-1-kernel-via-xen-patches-2-6-30-2-tar-bz2/ So far running ok. 1) I am not able to resolve issue while booting xenified

Hi All, I really could do with any pointers people might have as to the reason for this error. The server was working fine but this appeared after a reboot. The HTTP part in xend-config.sxp is disabled already. Any advice would be appreciated. Thanks, Rob # service xend start Starting xend: Traceback (most recent call last): File "/usr/sbin/xend", line 44, in ? from

Hi All, I really could do with any pointers people might have as to the reason for this error. The server was working fine but this appeared after a reboot. The HTTP part in xend-config.sxp is disabled already. Any advice would be appreciated. Thanks, Rob # service xend start Starting xend: Traceback (most recent call last): File "/usr/sbin/xend", line 44, in ? from

...je original----- De: John Leach [mailto:john@johnleach.co.uk] Enviado el: Viernes, 15 de Agosto de 2008 12:25 Para: Xen-users@lists.xensource.com Asunto: Re: [Xen-users] Live migration - Networking take 2 minutes or so to return On Fri, 2008-08-15 at 17:29 +0530, Sadique Puthen wrote: > Robert Dunkley wrote: > What is the version of xen and on what distribution you are running it? > If it''s Centos or RHEL, http://people.redhat.com/dzickus/el5/ would > mitigate this delay a lot. Hi Sadique, Interesting. Any further explanation accompanying those packages? What has been fixed...