March 2010

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13 discussions - 101 posts

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17
[CentOS-virt] Xen HVM domU won't start since updates to 2.6.18-164.15.1 kernels

I have a dom0 machine running CentOS 5.4 with all the latest updates using Xen as my hypervisor. I am using Xen in part because this machine was set up prior to KVM being included in RHEL, and in ...

Aaron Clark
Mar 28, 2010 at 12:55 am
Apr 12, 2010 at 7:34 am
15
[CentOS-virt] reboot guest on panic

I have a guest that keeps crashing and want to automatically reboot it when it crashes. See: xen PV guest kernel 2.6.32 processes lock up in D state https://bugzilla.redhat.com/show_bug.cgi?idU0724 ...

Norman Gaywood
Mar 13, 2010 at 10:03 pm
Mar 16, 2010 at 4:49 pm
11
[CentOS-virt] unable to get domain status from libvirt & KVM

I have a python script that monitors the VMs on physical host servers running Xen, but the script doesn't work properly on a server I just built with KVM. The script runs as a non-root user (same on ...

Tom Georgoulias
Mar 11, 2010 at 1:39 pm
Mar 12, 2010 at 4:56 pm
10
[CentOS-virt] RHEL 5.5 Xen fixes

Hello, RHEL 5.5 has been released, and it contains many Xen related fixes. Here's the most important of the them.. fixing a dom0 caching bug which could cause domU disk corruption when the domU disk ...

Pasi Kärkkäinen
Mar 31, 2010 at 3:38 pm
May 15, 2010 at 11:51 am
7
[CentOS-virt] get xen name from guest

Hello, Is it possible to get the name that was set in a VM's xen config file from the guest machine? I'm interested in having my kickstart launch a script that can configure hostname, but to do that ...

Ryan Pugatch
Mar 10, 2010 at 4:18 am
Mar 17, 2010 at 2:55 pm
7
[CentOS-virt] Thoughts on storage infrastructure for small scale HA virtual machine deployments

Hi, up until now I've always deployed VMs with their storage located directly on the host system but as the number of VMs grows and the hardware becomes more powerful and can handle more virtual ...

Dennis J.
Mar 2, 2010 at 2:56 am
Mar 7, 2010 at 1:58 pm
6
[CentOS-virt] Silly question about KVM

I was wondering, if I do not have hardware that natively supports full virtualization...and I choose to use KVM, will my VMs be running in some form of chip emulation (and therefore terribly slow). ...

Scot P. Floess
Mar 17, 2010 at 1:42 pm
Mar 18, 2010 at 7:37 pm
3
[CentOS-virt] What kernel params to use with KVM hosts??

Hi all, I order to reach maximum performance on my centos kvm hosts I have use these params: - On /etc/grub.conf: kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=LABEL=/ elevator=deadline quiet - On ...

Carlopmart
Mar 16, 2010 at 4:16 pm
Mar 17, 2010 at 11:18 pm
3
[CentOS-virt] gpl pv drivers and Centos 5.4

Hello, I am using Windows XP/2003 and 2008 under Xen. What is the correct version of gpl pv drivers for Windows under Centos 5.4 Dom0 ? rpm -q xen said 3.0.3.x but xen info said 3.1.x Regards,

F M
Mar 13, 2010 at 12:17 pm
Mar 14, 2010 at 1:29 pm
3
[CentOS-virt] Logrotate/cron and major I/O contention with KVM.

Is anyone else having major I/O peaks due to logrotate or other jobs running simultaneously across multiple guests. I have one KVM server running Centos 5.4 with local disk that is seriously ...

Steven Ellis
Mar 10, 2010 at 10:28 pm
Mar 11, 2010 at 7:09 pm
1
[CentOS-virt] [CentOS] Very unresponsive, sometimes stalling domU (5.4, x86_64)

Maybe the default LVM alignment is wrong for these drives.. did you check/verify that? See: http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/ Especially the ...

Pasi Kärkkäinen
Mar 2, 2010 at 9:18 am
Mar 2, 2010 at 12:48 pm
0
[CentOS-virt] Matthias Lorch ist außer Haus.

Ich werde ab 29.03.2010 nicht im B?ro sein. Ich kehre zur?ck am 06.04.2010. Bitte wenden Sie sich in dringenden F?llen an Herrn Roth, 0261 / 9120 - 258 Vielen Dank Gru? M.Lorch

Matthias Lorch
Mar 29, 2010 at 2:00 am
Mar 29, 2010 at 2:00 am
0
[CentOS-virt] PVM Ubuntu and xconsole error with XEN+CentOS

Hi, I tell you my problem: I've installed a Ubuntu's HVM guest in CentOS with XEN, then I convert my HVM to PVM based in this tutto : http://www.asplund.nu/xencluster/xen-convert-hvm-to-pvm.html ...

Fernando Castillo Ortiz
Mar 24, 2010 at 8:05 am
Mar 24, 2010 at 8:05 am