This can be useful in some cases:
http://www.bouncybouncy.net/ramblings/posts/xen_live_migration_without_shared_storage/
With the blocksync.py script on that page you can first make a copy of the
block device while the VM is still running. Then shut down the VM and make
another run only this
On 03/02/2010 04:51 AM, Ask Bjørn Hansen wrote:
On Mar 1, 2010, at 18:56, Dennis J. wrote:
The question that bugs me is how I can get enough bandwidth between the
hosts and the storage to provide the VMs with reasonable I/O performance.
If all the 40 VMs start copying files at the same time
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 machines I'm concerned about a
failure of the host taking down too many VMs in one go.
As a result
On 01/21/2010 10:59 PM, Bill McGonigle wrote:
On 01/21/2010 04:08 PM, Fabian Arrotin wrote:
The standard kvm from 5.4 and not the*old* one from extras
Hrm, this is probably where I'm going wrong. I have kvm -36 from
-extras (which bails if you specify a virtio type device). I'm not
seeing
On 01/12/2010 05:22 PM, Tom Bishop wrote:
Looking at what my best options for managing KVM via a gui. Running
Centos 5.4 and have several machines and want to migrate off of vmware
server 2.x. So far it appears that the management tools haven't quite
cought up to Vmware but are gaining and
. Or
virt-manager --debug --no-fork # might say something informative.
Andri
On Mon, 2009-11-23 at 17:26 +0100, Dennis J. wrote:
Hi,
A short while ago I renamed two VMs by shutting them down, lvrenaming the
storage devices and adjusting the storage path and vm name using virsh
edit
On 11/10/2009 04:13 PM, Pasi Kärkkäinen wrote:
On Tue, Nov 10, 2009 at 05:12:50PM +0200, Pasi Kärkkäinen wrote:
On Tue, Nov 10, 2009 at 03:49:59PM +0100, Dennis J. wrote:
On 11/10/2009 03:35 PM, Grant McWilliams wrote:
Both Novell and Oracle having been deeply involved in Xen lately
On 11/01/2009 10:51 AM, Manuel Wolfshant wrote:
On 11/01/2009 08:37 AM, Brett Worth wrote:
Christopher G. Stach II wrote:
I'd recommend not using LVM inside the images because if you just have
a raw disk image in
there with regular partitions you can mount it on dom0 (with losetup)
for
Hi,
I'm thinking about how to go about migrating our Xen VMs to KVM. Migrating
the configuraton should be easy using the virsh dumpxml/define commands but
what is the best way to transfer the (logical volume based) images without
too much downtime for the guest system?
Can rsync operate on
On 10/12/2009 06:17 PM, Grant McWilliams wrote:
On Mon, Oct 12, 2009 at 5:48 AM, Dennis J. denni...@conversis.de
mailto:denni...@conversis.de wrote:
Hi,
I'm thinking about how to go about migrating our Xen VMs to KVM.
Migrating
the configuraton should be easy using
On 09/28/2009 06:37 PM, Fabian Arrotin wrote:
Dennis J. wrote:
Hi,
Is there a way to make a PV xen guest aware of a size change of the host
disk? In my case I'm talking about a Centos 5.3 host using logical volumes
as storage for the guests and the guests running Centos 5.3 and LVM too.
What
On 09/14/2009 04:53 PM, Akemi Yagi wrote:
On Mon, Sep 14, 2009 at 7:24 AM, Hildebrand, Nils, 232
nils.hildebr...@bamf.bund.de wrote:
Hi Akemi,
KVM uses a para-virtualized approach?
Not at this moment according to this Red Hat virtualization guide:
On 07/25/2009 10:24 PM, Christopher G. Stach II wrote:
- Richrhd...@gmail.com wrote:
When using a para-virtualized guest, which network type should be
used?
Are you asking whether NAT vs. bridged is better? If so, it doesn't matter.
The guest is virtualized, remember? It doesn't
Hi,
What is the best way to deal with I/O load when running several VMs on a
physical machine with local or remote storage?
What I'm primarily worried about is the case when several VMs cause disk
I/O at the same time. One example would be the updatedb cronjob of the
mlocate package. If you
On 07/27/2009 04:53 PM, Karanbir Singh wrote:
On 07/27/2009 02:15 PM, Dennis J. wrote:
Hi,
What is the best way to deal with I/O load when running several VMs on a
physical machine with local or remote storage?
have you looked at :
http://sourceforge.net/apps/trac/ioband/
Yes, I've
On 07/27/2009 05:12 PM, Ben Montanelli wrote:
I am certainly no expert on Xen. I have read through docs and various
threads a bit considering the I/O demands and have the impression that
there are a couple of primary factors to work with (please correct me if
I'm wrong). My comprehension is
Hi,
we bought some machines with 2 x quad core Xeon E5405 processors and
installed centos 5.3 on them. My problem is that I can't get the cpuspeed
service to work. No driver seems to claim responsibility for the throttling
and the fallback modprobe acpi_cpufreq in the cpuspeed init script just
Hi,
I'm setting up a few machines for virtualization using Xen on Centos 5.2
x86_64. A lot of how-to's out there tell me to do something like mv
/lib/tls /lib/tls.disabled or similar actions or else Xen might not work
correctly. Is this something that is still relevant or does it only apply
Hi,
I'm wondering about the impact of using both dom0 and domU's on a server at
the same time. I'm worried about the performance impact of running a Mysql
server in a domU and now I'm thinking about moving the Mysql part of a LAMP
setup into dom0 and running a few Apache guests as domUs. Since
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