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 ...

learn more… | top users | synonyms (2)

1
vote
2answers
102 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 ...
1
vote
0answers
44 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
0answers
68 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 ...
2
votes
1answer
85 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 ...
1
vote
0answers
16 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
1answer
169 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 ...
2
votes
1answer
38 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 ...
0
votes
1answer
60 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
116 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 virt-...
0
votes
1answer
56 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
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 ...
2
votes
2answers
134 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 ...
0
votes
1answer
67 views

How to tell if VM in KVM is using VT-x

I have a machine running under KVM which is not performing very well. I have been trying to google a way to determine if a VM is using VT-x. I can find plenty of links on how to determine if your ...
1
vote
1answer
84 views

Libvirt with Xen fails to start correctly Ubuntu 14.04

At the moment i'M really feeling a little helpless: I tried to setup Ubuntu 14.04 with Xen and libvirt for management. I created a VM but I did not auto-start (altough autostart is checked). If I do ...
0
votes
2answers
678 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. ...
1
vote
1answer
76 views

Vagrant VirtualBox with many CPUs

I'm running a VirtualBox VM through Vagrant and I've noticed startup time performance decrease when adding more CPUs to the machine (Vagrant would timeout). E.g. there is a big difference in startup ...
0
votes
1answer
53 views

ESXi create instances of the virtual machines for each user

We set-up an ESXi server at our office not long ago, it works well. The users connect to the server with vmware Workstation to use the vms, but some of the employees are complaining that they don't ...
0
votes
2answers
788 views

xenserver - xe-toolstack restart - i lost connection from xencenter

After Xencenter-toolstack restart i lost connection from xencenter I try to restart using ssh - putty following message is showing and i lost the browser access also ............ All xe ...
4
votes
0answers
59 views

How can I provide services to an internal air-gapped extranet

Background - "Extranet" We have about a dozen users that are on what I would call an Extranet. It is an air-gapped LAN that is physically in the same location as our primary LAN. We share the ...
-2
votes
1answer
229 views

Best Free Hypervisor with HA [closed]

We have been running the free version of Citrix XenServer for about 2 years now and it has worked OK for the most part, but we have also had our issues with it. (problems with bootloaders on various ...
0
votes
1answer
35 views

“eth0 does not seem to be present” on RedHat despite new MAC address

I created a RedHat VM (6.5) on an Ubuntu (14.04) server. I changed the IP address to something unique in /etc/sysconfig/network-scripts/ifcfg-eth0. I changed the MAC address for eth0 /etc/udev/rules....
0
votes
1answer
155 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 startup,...
12
votes
8answers
2k 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
0answers
8 views

hostd.log shows only last few hours

I was trying to look at the hostd.log to see an alarm that was issued for a VM. The alarm happened at 8:30am which is 12:30 UTC in vmware log time. However, when I view the log it starts at 16:47. ...
0
votes
0answers
141 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 ...
1
vote
0answers
40 views

Virtualizing some domain controllers in a forest

our company has an AD forest made up of a root domain (domain ROOT) and two child domains (SUB1 and SUB2). The ROOT domain contains 2 DC's. SUB1 has 4 DC's and SUB2 has 3 DC's. Currently all the DC's ...
3
votes
1answer
118 views

Can I run two domain controllers within VMware vCenter on one physical server?

Before I go to the main question, I'll explain the current situation: My current employer uses VMware vCenter to run a fully operational, virtual environment (mostly domain controllers and RDP ...
0
votes
2answers
404 views

VMware ESXi, uploaded virtual machines won't start

We just installed a new ESXi server to our office (LENOVO TS140, ESXi 6.0.0). If I create a new virtual machine on ESXi, it works well, but we have a lots of old virtual machines (not that old though, ...
0
votes
0answers
94 views

What is the most recommended way for lightweight virtualization on Debian 8 Jessie?

When Debian 6 was launched, I used a virtualization tool called OpenVZ, when Debian 7 was launched, OpenVZ was deprecated and people were advised to use LXC instead. On Debian 8, I saw Docker and LXC,...
0
votes
0answers
12 views

Debian used + available does not equal size (storage) [duplicate]

I'm trying to find out why /dev/sda1 Used+Avail != Size. I ran a df -h and the output I get is this: File system Size Used Avail Use% Mounted on /dev/sda1 320GB 683M 303G 1% ...
-1
votes
1answer
47 views

Create something like Citrix XenDesktop using Xen [closed]

I am doing an academic project. I want to deploy a Virtual Desktop Infrastructure for my college. So, is there any way/guideline to make something like XenDesktop using Xen on a Linux Distro from ...
4
votes
3answers
211 views

How can a VMware datastore be moved to a different device?

I have two disks physical disks and only one datastore at the moment. I would like to move my datastore from Disk2 to Disk1. I'm sure this is possible but I cannot figure out how to do it from the ...
2
votes
2answers
146 views

hostname case sensitive - different output for getent

[root@GFVM4 ~]# hostname GFVM4 [root@GFVM4 ~]# [root@GFVM4 ~]# [root@GFVM4 ~]# getent hosts gfvm4 192.168.122.151 GFVM4 [root@GFVM4 ~]# getent hosts GFVM4 fe80::5054:ff:feac:787 GFVM4 [root@GFVM4 ~]#...
2
votes
2answers
335 views

How to deploy VHD image to physical disk?

I'm trying to take a VHD containing a generalized Windows install from azure and deploy the image to a physical disk on one of our servers. What's the best way to go about doing this? Can I use ...
1
vote
1answer
204 views

Host not responding - vCenter

Few days ago I configured a new vCenter server behind the NAT for my VMware Hosts. Everything is working perfectly on the Management LAN, but the problem is when I'm trying to add a server outside my ...
0
votes
0answers
20 views

Overhead in VMM with unprivileged instructions and system calls [closed]

I am reading about virtualization and ask myself about the overhead of instructions. Did I understand it right that when we have unprivileged instructions there is no overhead, since the hypervisor ...
1
vote
0answers
85 views

functioning of virtual interface on Linux [closed]

I am trying to understand the working of virtual network interfaces in Linux environment. Specifically, 1. I have created 2 virtual WiFi NICs in an Ubuntu 12.04 Machine with physical Atheros Wireless ...
0
votes
1answer
82 views

CentOS host, OpenVZ CentOS container with its own IP cannot access internet

I'm running CentOS 6, and I've got OpenVZ installed (installed with this guide). I'm new to virtualization, and I'm just using these containers for my own projects. I followed all instructions in ...
1
vote
2answers
203 views

anything alternative to VMCI technology in ESXi <5.5 for ESXi 6.0?

I have written two applications which I should place them on two different virtual machines. These two apps, need a fast communication between them. as I needed more than 1Gbps, CPU friendly link, I ...
0
votes
0answers
60 views

File not found while running docker

I am new to docker and need some help. I had a working docker image which I created using root file system archive by following these steps:- 1. cat file.tar.gz | docker import - docker_name 2. ...
0
votes
0answers
105 views

xend is not found - Xen 4.5 on Odroid XU3 ARM

I am trying to set up Xen virtualization on Odroid XU3 ARM platform. I have done all steps from http://forum.odroid.com/viewtopic.php?f=98&t=6643 to be able to boot into Odroid XU3 with ...
0
votes
1answer
169 views

Number of CPU cores versus frequency of cores in hypervisor

I plan to build a server mainly for running virtual machines. I will use mainly Qemu(with KVM support) and Virtualbox as hypervisors. There will be dozens of virtual machines and they do not execute ...
1
vote
0answers
130 views

Cant connect to server in Hyper-V Manager

I'm trying to connect to my server (running Hyper-V Core) with Hyper-V Manager in windows 10 and it will not connect, putting out the error: You do not have the required permission to complete ...
0
votes
0answers
361 views

Creating a XenServer VM from the Command-line

I have an issue in which I cannot understand how to create a XenServer Virtual Machine from the command-line. I have installed XenServer on an unused Tower unit, and currently SSH into it from my Mac....
1
vote
0answers
108 views

Hyper-V Host Requirements [closed]

We are considering consolidating three lightweight physical servers onto one machine using Hyper-V. I've received a quote for an HP ML310e Gen8 with the following specs: 1 Intel Xeon E3-1220V3 /3....
1
vote
0answers
115 views

How to configure HW, OS, network for virtualization with VMDq and SR-IOV features [closed]

I have: SUN X4100 M2 Intel Ethernet Adapter E1G42ET (VMDq and SR-IOV supported) Linux Ubuntu 14.04 Server (host machine) May setup 15 KVM as hypervisor I want some virtual guest machines (linux) ...
1
vote
1answer
32 views

Virtual hosts instead of separate IPs?

I've been wondering if it's possible to host multiple applications using a single port on one IP address. I'm meaning a similar method to Apache Virtual Hosts where you can assign domains/subdomains ...
0
votes
1answer
34 views

Config differents external proxy to every VM with iptables

I have a virtualization server with one IP and 5 VM. To get internet access and ssh access in every VM I do this in -------------/etc/network/interfaces------- auto vmbr2 iface vmbr2 inet static ...
0
votes
0answers
75 views

On debian, removing one virtual interface eth0:0 removes other virtual interfaces. Why?

Tried searching for the answer a lot of times. I have two virtual interfaces eth0:0(10.0.0.1) and eth0:1(10.0.0.2). I am trying to remove only eth0:0 interface. If I execute the command "ifconfig eth0:...
0
votes
1answer
35 views

Lean virtualization solutions [closed]

I am looking for a lightweight way to run a linux kernel guest under an OSX host. I need only to be able to boot a very minimal linux kernel, start a single process under it, and communicate with that ...