Virtualization is a group of software technologies that allow abstraction between layers of a system. This allows separation between the logical layers of the system, providing isolation, flexibility, and/or the ability to run more than one at a time. This differs from most traditional systems where ...

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2answers
1k views

Ubuntu LXC 14.04 Error

I had installed LXC in ubuntu 14.04. I had used an existing template and created a VM by executing the below command. /usr/share/lxc-templates/lxc-ubuntu -p /lxc/vm0 After the installation getting ...
0
votes
1answer
78 views

Do any hypervisors support vTPM?

I am trying to use vtpm to provide remote attestation for VMs, but I do not know what hypervisors support vtpm. Does anyone know?
2
votes
2answers
140 views

Is Server Clustering Right for a 25 Person Business?

Company owner wants high availability as even a 1 hour downtime kills billable revenue for 20 accountants. I've got a one year old Dell PE T110-II running 2012 Standard and an ancient PE 840 running ...
3
votes
2answers
18k views

Can't ping host from vmware guest using bridged networking

Host is Windows 7 Guest is Ubuntu 11.04 Network adapter is wireless I can ping other computers on the network but not the host. No firewall are involved. Sniffing the traffic with wireshark it ...
3
votes
1answer
55 views

Ensure docker pulls most current image

Assuming I have registered a repo at Docker Hub, called MyRepo. Assuming I am working on a Docker image called MyImage. Assuming I have configured Docker Hub to build images from Dockerfiles ...
0
votes
0answers
25 views

How to alias default gateway IP address

The problem is the following: I have got two dedicated servers at OVH. I have got few virtual servers (KVM+libvirt) and I want to migrate them between two hosts. I already managed to make live ...
5
votes
1answer
12k views

why is kswapd using high CPU on an idle system?

I have an idle Linux centOS system and yet kswapd is using 100% cpu. All I have running is a single bash session with top running.... I have 32G RAM and yet kswapd is constantly using 100% cpu for ...
0
votes
0answers
45 views

Proxmox safely remove node from cluster without deleting vms

I have 2 nodes, each of them on a separate device. I joined the second node to the cluster to migrate a copy of one of the VM's to it. Now I can't login to the web manager of it, just can login to ...
1
vote
2answers
610 views

ESX: Get VM uuid/name from within VM

Is there a way to get a VM's name or UUID from within the VM itself, for a VM that is running on a VMWare ESX server? If so, what is the way? My use case is: I'm cloning a bunch of VMs. A program ...
5
votes
5answers
6k views

What is the best distro to host a KVM virtualization solution

I am looking for a Server oriented distro that we can expect have decent support but also offer as much as possible some of the latest features that KVM might offer. I am leaning towards Ubuntu LTS ...
4
votes
1answer
11k views

How do I delete a VM from 'virsh list -all'?

I created a VM using vmbuilder but I realize that I had set some of the flags incorrectly. Now when I do a virsh list -all it still appears, laughing at my novicity. How do I delete this? (I've ...
0
votes
1answer
45 views

Setting up network connectivity between 2 VirtualBox Windows VMs

I am attempting to set up a set of VMs on Virtualbox and have configured one as a DC running Windows Server 2008 R2, and it's intended to function as a primary DNS server. I have created a reverse ...
2
votes
2answers
1k views

virt-install kept on adding --no-reboot - even though I don't want it to

I have a bit of a problem getting my guests to reboot after the OS installation using virt-install. For whatever reason, virt-install insists on inserting "--no-reboot" when you create a VM: ...
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votes
1answer
56 views

Slow http response time from vm [closed]

I am currently hosting a test website under a 8 vcpu and 2gb ram virtual machine using nginx and php-fpm, the host machine is hosting other virtual machines doing the same thing with 10gbps network ...
0
votes
1answer
35 views

Volumegroup using entire disks instead of partition - Extending online Vmware

Is it possible when using entire disk for volume groups to extend the assigned disks space from the vmware console, and then online the volume group after rescanning host to know the new size, or to ...
0
votes
0answers
9 views

Get direct block addresses - Sleuth kit - XEN

I am using sleuth kit library in order to write an introspection tool for XEN hypervisor and my question is if we have the inode number of a file on a disk [ guest VM - ext4 filesystem], for example ...
0
votes
1answer
52 views

2 Node Failover Cluster

Hi fellow tech geniuses! I got a task from my boss to build a 2 node Hyper-V failover cluster, that's dead simple right? The problem is that the hardware is already bought. Both servers are ...
1
vote
1answer
39 views

Options for optimising QEMU emulation (-cpu flag)

I have been doing some reading about optimising QEMU and one thing that I am confused about is the -cpu switch. At the moment I am using -cpu host which is supposed to transfer all the hosts cpu ...
18
votes
13answers
30k views

Is it possible to setup a virtual machine inside another virtual machine

I have been playing with virtual machines latley, and wondered if I could run a virtual machine inside a virtual machine? Is it possible? Is it practical?
1
vote
1answer
75 views

Hyper-V host memory requirements. Possible over allocation to guest VMs?

System: PowerEdge R430 Intel Xeon E5-2440 (dual) 32GB RAM Hyper-V 2012 R2 VMs: DC - 8GB RAM APP - 19GB RAM The VM's are not configured for dynamic memory. The client was complaining about ...
0
votes
1answer
87 views

Proxmox Virtualized Client (Network Configuration)

first some information about me. I ordered a server from ovh and purchased one failover ip to test proxmox and do some training. The main Server is hosting proxmox(Example IP: 123.45.67.89 to figure ...
1
vote
4answers
4k views

How can I change Qemu KVM machine architecture from 440fx to q35 with virsh edit or virt-manager

Still trying to get GPU passthrough working and decided to change machine type from older 440fx to q35 ie pc-q35 but if I do virsh edit on the config it refuse to save saying "PCI Bridges not ...
4
votes
4answers
6k views

Convert directory to QEMU/KVM virtual disk image

I have a directory filled with data at /var/backups/disk1 that I want to convert into a virtual disk image which I'll then be able to boot using QEMU or KVM (the directory contains the file system for ...
8
votes
2answers
2k views

Does enabling hardware x86 virtualization (AMD-V or Intel VT-x) slow down my computer if I'm not running virtual machines?

Does enabling hardware x86 virtualization (AMD-V or Intel VT-x) slow down my computer? Obviously, it improves the performance if I'm running virtual machines, but what if I'm not running any VMs?
1
vote
0answers
35 views

Efficiently managing multiple Windows 7 VMs

I will be running several (at least 10, probably more) Windows 7 virtual machines on a Linux server and I am looking for a way to manage this efficiently. All the machines will be identical except for ...
2
votes
0answers
16 views

Transparently farm processes out to cluster

Situation: At work, we have an in-house tool for data crunching. When a job is triggered, it starts multiple copies of itself in separate processes and communicates with them in order to crunch in ...
2
votes
1answer
69 views

Missing memory on ESXI 6.0

I have an ESXI 6.0 with 8GB Ram. For some reason I can only use 4.7GB for VMs. I tried using esxtop but didnt see anything using lots of RAM. Below are screenshots from vsphere. Can anyone help me to ...
2
votes
1answer
68 views

Virtualized X Server on Host Machine

So, I'm trying to tackle a rather odd issue. I'm fairly new with virtualization (the most I've managed is isolating some applications with Docker and VirtualBox, which isn't hard to do). I am more ...
0
votes
1answer
130 views

How to create bridged network interface for Xen?

I'm trying to use Xen on an Ubuntu server for the first time and have a really basic question. I'm following the guide in the Ubuntu docs and under the Network Configuration->Using bridge-utils ...
4
votes
1answer
2k views

What is the recommended method to prepare Red Hat/CentOS 7 templates?

If I need to deploy Red Hat 7 from template, I would like to take the recommended steps to make my "golden image" clean. It should boot to the first boot prompt and guide the user through the typical ...
2
votes
1answer
75 views

Thought about using my server hardware effectively

I will receive my new server hardware in some days, and of course I am already planning on how to use it the most effective way. My current thoughts are about scaling the web and database server on a ...
0
votes
0answers
22 views

Virtualizing physical Windows Server 2003 R2

I have a HDD that seves as dead data archive. I want to virtualize the HDD in XenServer in atempt of evade some problems (like losing the HDD itself). I tried the VMconverter from VMware (to futher ...
1
vote
1answer
45 views

Using hpasmcli, how do I find two specific BIOS settings?

Using hpasmcli in Ubuntu on an HP ProLiant Generation 9 server, how do I find this BIOS setting? Boot to BIOS -> System Options -> Virtualization Options is either enabled or disabled I cannot ...
0
votes
1answer
81 views

Troubleshooting SmartOS VM that won't start

I'm running SmartOS 20130405T010449Z with an Ubuntu KVM inside. The Ubuntu VM ran healthily for months, then after a reboot of the physical hardware the vm no longer connects to the network on ...
1
vote
0answers
33 views

Virtual Desktop Setup for Small Team [closed]

We have a 24 GB RAM and Quad core Workstation need to be ready as Virtual desktop Server. The need is the Developer(5 users) must be able to Login from LAN or Internet to the Workstation in order to ...
2
votes
2answers
116 views

ganeti-metad bind address based on cluster configuration

On my machine (debian jessie) ganeti-metad listens on all interfaces: # netstat -lepn | grep metad tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 0 66528 ...
2
votes
0answers
53 views

Best practice for configureing vmware dv uplink port groups?

I'm creating a distributed virtual switch - each host has 2 physical NIC's each of which will map to an uplink port. I want to create uplink port groups so i can set up NIC teaming, I wanted to know ...
4
votes
6answers
697 views

Deploying virtual machines - Windows Guest/Linux Host or vice versa?

I'm looking to deploy several virtual machines for users. They need access to both Windows and Linux. They also need to use the computers graphics card (for Photoshop, modeling, etc) under Windows. ...
0
votes
2answers
406 views

Unable to import Virtuabox VM onto Headless Server

I have a Virtual Image on my Windows Machine. I want to transfer it to my Headless Debian Server. I've installed VirtualBox on the Debian machine. On the windows machine ive exported the file as a ...
1
vote
0answers
14 views

How can I tell which customization specification has been applied to a deployed VMware VM?

I have inherited a load of virtual machines deployed from templates in VMware. Is there a way that I can tell which customization specification was applied to them during the process?
0
votes
2answers
167 views

What is the correct way to activate a Server 2012 Guest in Hyper-V (NOT R2) with a server 2012 host using virtualization rights?

I've done quiet a bit of searching on this and can't seem to find an answer, everything seems to refer to R2 and AVMA or just simply states you are allowed 2 visualization rights and nothing else. ...
2
votes
1answer
35 views

New linux releases on old hypervisor

I have just bought a Proliant DL360 G5 for learning and testing. It's an old machine but it's enough for me. When I looking supported operating systems on HP's support pages, I noticed that the ...
12
votes
8answers
1k views

Free hypervisor for small configuration

I'm building a server for virtualization for a non profit organization. I was planning on employing VMware ESXI free but I'm second guessing my plan because newer ESXI don't seem to be well supported ...
0
votes
1answer
36 views

Persist OVS mirroring on Xen reboot

I'm running Xen on Debian with five guest VM:s. I've used the following command to setup port mirroring to two of the VM:s ovs-vsctl \ -- --id=@m1 create mirror name=detector \ -- add bridge ...
0
votes
1answer
82 views

How do you create a qcow2 file that is small yet commodious on a Linux server?

I believe that there are qcow2 files that displace a small amount of gigabytes on a server (as verified with a df -h on the physical server) yet allow for lots of space when you log into the ...
3
votes
1answer
706 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 ...
-1
votes
1answer
101 views

clonehd takes 2 hours for a 100GB disk. Expected? [closed]

I have a VirtualBox image using VDI and flexible size. Right now the physical DVI file 94GB. The host is an Ubuntu server and the guest is a CentOS 6.4 with ext4 partition. The host is using a sata ...
0
votes
1answer
51 views

How do I add storage to a VM so that the added storage is dedicated to a new directory?

I have an Ubuntu server with virt-manager. I have an Ubuntu VM running on this host from a qcow2 file. I don't use separate disk files or img files besides the qcow2 file. I want to allocate 50 GB ...
0
votes
0answers
86 views

Issues Importing Virtual Box(VDI) images into Google Compute Engine

I've attempted to import/migrate an Ubuntu 14.04 LTS Server image I made in Virtual Box into GCE. However, after I upload the image into cloud storage and try to make an image from it, I receive a ...
0
votes
2answers
38 views

System configuration for virtualized environment hosting many VMs

As a company we are going for a new server that will run hypervisor and host another 3 VMs - Two business systems + VM with Sql Server only (Equivalent of AWS RDS) Operating systems of each VM and ...