0
votes
0answers
32 views

KVM : VMs need several restarts to boot (on 2 different hosts)

I'm using a KVM hypervisor on a Ubuntu Server 12.04 server. My virtual machine's virtual disks are LVM volumes, formatted as ext3. The guest OSes are all Ubuntu 12.04 and 14.04 server. Everything ...
0
votes
0answers
21 views

KVM Dynamic Rate Limiting

How can I dynamically rate limit the network speed on individual KVM instances? For example, I want to set a rule where if a user uses over 100mbps inbound or outbound bandwidth for over 30 minutes, ...
1
vote
0answers
78 views

Slower VM Performance for Headless Browser Tests on Xeon

I created a virtual machine on my desktop to run our continuous integration process. After I was happy with it, I moved the VM (keeping the same configuration) onto our server where I found that the ...
1
vote
1answer
386 views

Ubuntu 14.04 KVM host - not allocating KVM guest correctly, high load

Encountering an odd issue with Ubuntu 14.04 KVM hosts/VMs. We have a number of physical machines, all the same spec, but when we try and start the same type of KVM image (OpenNebula is managing the ...
2
votes
1answer
44 views

KVM image size has changed

We had a 180GB VM image. Inside the guest VM everything is OK and hdd size is 180G. but when we look the image size on the host it is 475MB. I am afraid that if we restart, the VM wouldn't work. I ...
1
vote
1answer
99 views

vanilla ubuntu-vm-builder on i7 aborts aborts (with PAE?)

host: intel i7-4* cpu, running linux kubuntu 14.04 guest: attempting to create. ubuntu-vm-builder kvm saucy eventually, Get:1 http://archive.ubuntu.com/ubuntu/ saucy-updates/main ...
0
votes
0answers
137 views

Optimizing disk performance on KVM VM configuration

I have a KVM host server running Ubuntu 12.04 LTS, bare bones installation with only KVM installed. The server has an 8 Core Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz CPU with 32GB of RAM and SATA ...
0
votes
0answers
23 views

KVM: RAM Usage vs. actual consumption on VPS [duplicate]

My VPS hoster is worrying about me consuming more than booked as guaranteed RAM. My VPS is most of the time almost idle, no DB or caching in background. It's only an nginx for hosting static files of ...
2
votes
2answers
64 views

How to get SRIOV network pool with multiple PFs

For an Ubuntu 12.04 server and KVM/libvirt 1.0.0 with an Intel 82599 network chip: following these docs: ...
2
votes
1answer
193 views

Ubuntu/KVM Bridge Interface IP Assignment

I have a Ubuntu 12.04 LTS machine running KVM/libvirt. It has two physical ethernet interfaces. I have dedicated eth0 as the primary interface and configured bridging on eth1 for my VMs. The KVM host ...
0
votes
1answer
72 views

Detailed explanation of how virtual machine snapshots work

I would like to fully understand how virtual machine snapshots work. Although I have researched this subject I cannot seem to find a "high-level" overview of how snapshots work practically. My ...
1
vote
2answers
62 views

KVM Disk Formats: Portability

I have recently begun experimenting with the KVM virtualization infrastructure. After deployment, I used virt-manager running on a management computer to build my first guest. I notice that, by ...
1
vote
2answers
133 views

How to assign IP automatically to a stateless Ubuntu virtual machine?

I plan on creating a reusable template image for deploying my application to multiple virtual machines that may be on different networks and different datacenters. I plan on having full control of ...
2
votes
2answers
447 views

Ubuntu 12.04 LTS KVM host with a OpenBSD 5.4 guest, `virsh shutdown` not working / freezing guest

I have Ubuntu 12.04 LTS KVM host with a OpenBSD 5.4 guest. I am having an issue with virsh shutdown not working / freezing guest. After calling shutdown, guest freezes and is unresponsive. Any ssh ...
2
votes
1answer
158 views

OpenStack EC2 Ubuntu cloud image — SSH host keys were changed after emegency reboot

Recently one of our servers was hanged due to IPMI BMC failure. It is CentOS 6.3 OpenStack compute host serving KVM vitual machines with qcow2 backend. There was running a VM based on EC2 Ubintu ...
1
vote
0answers
330 views

Ubuntu server 13.10: Installing and running Archipel from deb packages

I am setting up a server to host virtual machines based on Ubuntu Saucy. The decision was to use Archipel for remote administration. Installation of ejabber and Web Client UI went smoothly. For the ...
0
votes
1answer
880 views

Booting Ubuntu as VM with KVM on Ubuntu 12.04

I am trying to boot my very first VM using KVM. I have Ubuntu 12.04 installed, i made sure the BIOS had the right virtualization flag enabled for intel processor by running kvm-ok. I have researched ...
2
votes
2answers
527 views

How to test KVM guest CPU maximum allocation limit?

Running Ubuntu 13.04 Host and vm Guest. Using virtio for hdd, nic. Max-allocaion CPU cores is 6, minimum is 2. here is a screenshot for clarification: http://i.imgur.com/GmYQBMP.png Ive made a vm ...
0
votes
1answer
413 views

Ubutu/KVM: High iowait on guest nodes, root node fine

Recently one of my boxes has been running quite slowly. It's running Ubuntu 12 LTS and kvm to split the server into several nodes. The box has 2 normal SATA drives using software RAID-1. One of the ...
0
votes
1answer
91 views

Ubuntu 12.04: KVM and assigning public IPs to VMs

I'm setting up an environment where I have a VM host running behind a NAT firewall and plan to install VMs with public IPs so that they can be directly accessed over the internet like in the following ...
-2
votes
2answers
116 views

VM running perfectly when its disk image is deleted? [closed]

Does anyone has such experience that you accidentally delete the used disk image when virtual machine is running? I would expect that the virtual machine will fail immediate, but, surprisingly, it ...
2
votes
1answer
104 views

Detect spikes from other VPS

On a KVM-based VPS I am using to run Ubuntu and various Web services, and I am experiencing spikes a few times a day when database access seems to be much slower than normal. Is there any way I can ...
1
vote
1answer
89 views

Migrating to kvm

Ours is a small setup. Currently we have two windows/hyper-v servers running around 8 ubutu server virtual machines. The virtual machines were built long time back to the extent that ubuntu version is ...
0
votes
0answers
202 views

kvm guest having temporary network drops

I have a Scientific Linux 6.3 KVM host running 2 nearly identical Ubuntu 11.04 guests. I built 1 base image and then cloned. Each vm has mysql and different RoR app installed on apache, using nginx as ...
0
votes
0answers
277 views

Routing issue with KVM: Gateway on different Subnet than VM

I have Server at hetzner.de, with a /29 subnet for running KVM-VMs. The VMs get network access via a bridge interface. I'm currently using two IPs from the subnet. The VM-host is running Ubuntu 12.04 ...
2
votes
1answer
709 views

Ubuntu 12.04 KVM host high load with idle ubuntu 12.04 guests

I am stuck with this one. Clean install Ubuntu 12.04 server 64bit on two physical machines. Machines are identical except one has 8GB RAM and the problem machine has 32GB RAM, both machines were ...
0
votes
1answer
224 views

UBuntu 13.04 Server with a Windows 2008 VM

I have a ubuntu 13.04 server. On it I have a virtual machine (kvm), with Windows 2008 on it. I have configured /etc/network/interfaces to have a bridged connection to the machine, so I am able to ...
0
votes
1answer
56 views

Channelling DOM0 internet connection through DOMU

Bit of an odd queston but wanted to know your opinions on the following: I have a small computer that has Ubuntu (Both DOM0 and DOMU) virtualized using KVM. Now the person that will handle this ...
0
votes
1answer
69 views

KVM Image Jammed After Power Unplug

We have a HP DL380 Server which has ubuntu 12.04 OS as Host and for Virtualization KVM. Power of our server unplugged suddenly and after plugging power size of image of vm in ...
0
votes
1answer
135 views

KVM guest setup problems (Ubuntu 12.10)

-The host system that KVM is running on is Ubuntu 12.10. - I am trying to install 12.10 on it as a virtual guest. However, when I issue the virt-install command it replies with this: Starting ...
0
votes
2answers
171 views

How to physically bridge network interface KVM - Ubuntu 10.04

I have a host installed Linux/Ubuntu 10.04 LTS on a Dell PowerEdge server with 4 NICs interfaces, so how can I dedicate a network interface for Guest Machine ?
0
votes
1answer
511 views

what is Virtualization kvm vnet1 and vnet2

please any one can advice what is vnet1 and vnet2 in kvm Virtualization as iam using host ubuntu 10.04 LTS as i have a bridge and everything is running perfect but when i did the command brctl show ...
-1
votes
1answer
246 views

Cannot access Qemu/KVM virtual using console, VNC, or SSH, or access via network (IP range no longer valid) [closed]

I have the host sitting here next to me, so you'd think I'd have decent control of the guest. I should add that I have already attempted various other means, such as mounting the drive, but I have ...
0
votes
0answers
498 views

“sched: RT throttling activated” KVM host - what does this mean?

Ubuntu 12.04 64bit - under a KVM parent. 32 cores. So we seem to be having some load issues. We have noticed this line in kern.log: "kernel: sched: RT throttling activated" What does this mean? Is the ...
0
votes
2answers
440 views

KVM - Guest does not recognize second NIC

I have a server running Proxmox (a virtualization platform), and created a KVM virtual machine with Ubuntu Server 12.10. After configuring the network, everything works fine, but if I add a second ...
3
votes
1answer
370 views

Assign public and private IP addresses for a KVM guest

I would like to create a KVM guest with two different IPs, like one public IP and another private IP for the same KVM guest. My host is 210.x.x.x. Series and Guest are also configured with the ...
1
vote
1answer
434 views

Ubuntu 12.04 KVM running Ubuntu 12.04 with linux-image-virtual crash on boot

One of my VMs is stuck on "pause" in virsh. If I destroy and restart it, it will go to pause after a bit of time as "running". I can at best enter my username at login if I'm quick but it'll then ...
1
vote
1answer
199 views

Ubuntu server 12.04 having 7GB disk usage discrepancy

I did a fresh install of ubuntu server 12.04 as a KVM virtual guest. I used a kickstart file to automate the installation, I've included the command to create the guest as well as the partitioning ...
0
votes
0answers
159 views

Creating a Scientific Linux KVM virtual machine over FTP causes errors from Virt-manager

so currently I am attempting to create a new KVM virtual machine using Virt-manager. I've extracted the .iso of Scientific Linux into the root folder of vsFTP I've set up with anonymous access. When ...
-1
votes
1answer
328 views

ubuntu's average load never below “0.00 0.01 0.05”

I have several ubuntu 12.04 VMs running on a ubuntu 12.04 KVM host. Those of the virtual machines that are totally idle with no services (except syslog and the other "small" standard stuff of a fresh ...
0
votes
3answers
690 views

Windows Guest VM no internet on Ubuntu KVM host

I installed Windows 7 as a guest in KVM running on Ubuntu 12. Windows seems to be running fine with the exception that it can't access any external domains or IPs. The guest can ping the host's IP ...
1
vote
2answers
198 views

KVM + Cloudmin + IpTables

I have a KVM virtualization on a machine. I use Ubuntu Server + Cloudmin (in order to manage virtual machine instances). On a host system I have four network interfaces: ebadmin@saturn:/var/log$ ...
0
votes
1answer
418 views

KVM virtual machine networking, NAT and bridge together

I have two running KVM guests on an Ubuntu (Lucid) host. One of them uses the simplest NAT method, and DHCP inside. The other uses the bridge method and static IP inside. Both work fine. Can I mix the ...
1
vote
0answers
935 views

How to make sysctl network bridge settings persist after a reboot?

I am setting up a notebook for software demo purpose. The machine has 8GB RAM, a Core i7 Intel CPU, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit. The notebook is used as a KVM host and runs a few KVM ...
0
votes
1answer
289 views

ubuntu qcow2 image for local usage

I'm using kvm and I would like to run ubuntu server on it. My goal is to run db2 database instance for development. Is there ready to use ubuntu qcow2 images online for such purpose? Or should I ...
0
votes
2answers
229 views

Ubuntu with KVM guest VM and broken bridges

I have an Ubuntu box with a KVM guest VM running. They use bridging so the guest VM attaches to the physical network of its host. The guest VM has 2 NICs in 2 different bridges. First NIC of the VM ...
-1
votes
2answers
5k views

How to decide between Xen or KVM? [closed]

I am going to set up a high availability hosting server (load balancer, mysql, apache, php, memcached, apc, possibly a distributed/network file system of some kind) with two nodes. I want to isolate ...
1
vote
2answers
3k views

How to bridge a range of public IPs to KVM virtual machines on Debian/Ubuntu

I've been trying for weeks to figure out the right network configurtion for sharing a range of public IPs with KVM virtual machines running on my server, but so far with little luck and with the help ...
0
votes
4answers
1k views

Converting VMWare VMs to KVM

I have a dozen VMs running on VMWare. I also have a half dozen VMs running on Ubuntu+KVM. I've found KVM much easier to manage (no Windows-only GUI and insanely cheaper), so I'm trying to migrate away ...
1
vote
4answers
7k views

Import existing VM into Openstack/Cloudstack

We're currently running our infrastructure with XEN + CentOS and are thinking to make the move to Ubuntu (Both as Host and Guest) + KVM. Our objective is to, at a later stage, create a private cloud ...