virt April 2012

virt@lists.centos.org

14 participants
15 discussions

Mac virtualization over KVM
by Mihamina Rakotomandimby 26 Apr '12

26 Apr '12

Hi all, Has anyone succeeded on running this Mac from iATKOS http://goo.gl/AosaB over KVM? Would some have a domain config file to help? I see that for openSuse kernels it seems to work: http://goo.gl/X11MJ The ressource it a bit outdated, might be innacurate today. Would you know a ressource teaching how to? Thank you. -- RMA.

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LVM-snapshot based KVM VMs
by Paul Basov 26 Apr '12

26 Apr '12

Good m/d/n guys, wanted to put idea through you before trying to implement this. So afaik LVM snapshots basically don't take any "real" space on hard drives. I'm using KVM virtualization on my hosts and let's say i create an LVM volume for my linux VM, then install it properly, shut it down and take LVM snapshot of it. Basically i've just cloned it (LVM2 snapshots are r/w). I feed it to KVM and that's it? Can i snapshot this volume N number times and get N number of VMs that take zero actual space on actual hard drive? And when cloned VMs start writing, they will be actually writing only diffs from "master" VM. This looks like an interesting idea to manage a lot of "template" VMs while saving huge amounts of disk space. Or maybe i'm just inventing the bicycle. What do you think? Is this possible?

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XEN or KVM - performance/stability/security?
by Rafał Radecki 21 Apr '12

21 Apr '12

Hi all. I am currently building a small test cloud based on Eucalyptus 2.0.3 and CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN. KVM is the default in CentOS 6 but I have read also many good things (for example PV guest machines, isolation between Dom0 and DomU) about XEN. Key factors from my opint of view are: - stability (which one runs more smoothly on CentOS?) - performance (XEN PV/HVM(with or without pv drivers) vs KVM HVM(with or without pv drivers)) - security Could you share your experience in these areas? Best regards, Rafal Radecki.

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NIC binding on host and pass through to guests
by Tommy Pham 06 Apr '12

06 Apr '12

Hi, I've just joined the list because of questionnaire in the forum [1]. The hardware is AMD-V(IOMMU) capable and is enabled in the BIOS with 3 NICs. I currently have host Windows 2008 R2 installed but binds (network services and protocols) on NIC3 only. My guests on VMWare workstation (has bridged network service bound on all 3 NIC) has bridged 3 NICs for the guests where NIC1 is WAN, NIC2 is LAN1, and NIC3 is LAN2. One guest have access to all 3 NICs. Other guests would only have access to either NIC2 or NIC3. Is it possible to duplicate this in CentOS 6.2 (minimal install preferred) with open source virtualization (qemu-kvm/libvirt ?) ? I think I need to install the bridge-utils package. Do I need to install the ebtables too? Thanks, Tommy [1] https://www.centos.org/modules/newbb/viewtopic.php?topic_id=36785&start=0#f…

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Um convite especial
by Gilberto Ferreira 06 Apr '12

06 Apr '12

Criei um perfil no Facebook com minhas fotos, vídeos e eventos e quero adicionar você aos meus amigos para que você possa vê-lo. Primeiro, você precisa se cadastrar no Facebook! Uma vez cadastrado, você também poderá criar seu próprio perfil. Obrigada, Gilberto Para se cadastrar no Facebook, clique no link abaixo: http://www.facebook.com/p.php?i=1389680649&k=AQCUqFQ-FeMKMvR37jKtfnE9oG-vek… Já possui uma conta? Adicionar este endereço de e-mail à sua conta: http://www.facebook.com/merge_accounts.php?e=centos-virt%40centos.org&c=AQA… ======================================= Essa mensagem foi enviada para centos-virt(a)centos.org. Se você não deseja mais receber estes e-mails do Facebook, use o link abaixo para cancelar sua inscrição. http://www.facebook.com/o.php?k=bd9714&u=100003725730977&mid=5e90f35G5af3ee… Facebook, Inc. Attention: Department 415 P.O Box 10005 Palo Alto CA 94303

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virt April 2012