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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4 views

How to upgrade Xen with minimal risk and downtime?

I've recently noticed that one of my server is running on a pretty old version of Xen: $ dpkg-query -l | grep xen ii libc6-xen 2.11.3-4 Embedded GNU C ...
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0answers
8 views

Issues while trying to configure host in oVirt - Unable to connect to server via ssh

I am trying to configure a new host on a Centos7 server on which I was able to successfully install oVirt. After logging into the webadmin interface, I created a datacenter and a cluster ...
0
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2answers
1k views

How to share Internet connection with Ubuntu Virtual Machine?

I have Windows Server 2008 R2 as host and Installed Ubuntu 11.04 as Virtual Machine using Virtual Box. My proxy is configured using URL. I tried configuring in the networking settings and also with ...
0
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0answers
15 views

Virtualization solutions for small businesses [on hold]

I am looking for virtualization solution for small businesses (10-20 workers). The goal would be to be able to use multiple virtual computers at the same time from different client computers. ...
15
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5answers
19k views

How to zero fill a virtual disk's free space on windows for better compression?

How to zero fill a virtual disk's free space on windows for better compression? I would like a simple open source tool (or at least free) for that. It should probably write an as big as possible file ...
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2answers
67 views

Multi IPs on a Xen VM with bridging

While I am fairly new to XEN (running under Ubuntu 14.04) I've not had any real issues until now. I have set my networking using bridging and that has worked well for many different machines until ...
0
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1answer
37 views

Is it possible to migrate a Parallels Desktop Windows VM to Mac OS X BootCamp?

I have a Parallels Desktop virtual environment that includes software that cannot be reinstalled elsewhere. It's native to that VM. I'm running the environment on my Mac Mini and am seeing huge ...
5
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4answers
3k views

Virtualization platform for older hardware (non Intel-VT/AMD-V)

I am trying to build a small virtualized testbed using some older Xeon-based servers that do not support Intel VT-x. In their previous use, the servers were running VMware ESX 3.5. Is there a more ...
-1
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0answers
15 views

Using XenServer to host multiple VMs and use them from the same computer [on hold]

I'd like to run multiple virtual machines on my home computer and be able to switch between them easily. I could just have a windows host, and a number of guest VMs. However is it possible to have ...
1
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1answer
16 views

Checking for disk failures and issues in a VM

If you host with a provider who runs a RAID 10 or another RAID based system and your in a VM. Are you able to check for disk failures or RAID failures from within the VM or does it require host based ...
25
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8answers
3k views

Consumer (or prosumer) SSD's vs. fast HDD in a server environment

What are the pro's and con's of consumer SSDs vs. fast 10-15k spinning drives in a server environment? We cannot use enterprise SSDs in our case as they are prohibitively expensive. Here's some notes ...
0
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1answer
3k views

Can I use XenServer GPU Pass-Through without XenDesktop?

XenServer documentation only covers using GPU Pass-Through ("vGPU") to run XenDesktop's "HDX 3D Pro Graphics." XenServer GPU Pass-Through cannot be used with the XenCenter VNC console and it does not ...
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2answers
2k views

Cannot connect to Openstack Instance via horizon, but SSH works?

I've got an OpenStack deployment running inside a VM for testing purposes. My setup is as follows: Host Ubuntu x64 with Virtualbox -> Guest Ubuntu x64 with OpenStack -> Ubuntu X64 Server Test ...
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0answers
8 views

Accessing individual vmx file for using vProbes to extract information of the VMs into an external environment.

Scenario: I have created 2 VMs running under one ESXi. The .vmx files for each VM is not separately seen in the main host machine where all the VMware files are created under the C: drive. The vmx ...
-1
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0answers
22 views

Installing Wndows 8.1 libivrt

I am trying to install Windows 8.1 trial using libvirt under CentOS 7.1. I have gotten past the part of creating the bridge, br0, and that part works fine. However, the installation hangs forever on ...
1
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0answers
26 views

Hyper-v virtual machine acting as two separate vm's

I have a Hyper-V virtual machine (vm1) that has two separate instances of itself. I can log into what should be the same VM (vm1) through Hyper-v and RDP (Remote Desktop Connection) with the same ip ...
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0answers
12 views

install openstack on virtual machines

Can I install openstack on 3 different virtual machines with the configurations as listed: Controller Node: 1 processor, 4 GB memory, and 10 GB storage Network Node: 1 processor, 4 Gb memory, and 20 ...
1
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3answers
415 views

can i run VMware and KVM on a single host

I have two process which are running on different VM's(VMware and KVM).Now I wants both the processes to be run on a single host.Will it work if i use both VMware and KVM in a single host? Thanks ...
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0answers
61 views
+50

Is a single instance VM with a SLA possible in Azure with 3rd party software?

I understand that single instance VMs aren't eligible for an SLA in Azure. For the SMB customers who have important applications that weren't built well enough (Sage 50 in my case) to allow you to ...
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0answers
13 views

VirtualBox networking (inception computing) [closed]

I am new to world of networking and now I am trying to connect 3 PC`s together. I have windows 7 host that runs Ubuntu64-bit server guest, that runs ubuntu32 server guest. Win7- Host Only network ...
1
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1answer
3k views

How do I tunnel an HTTPS proxy through a virtual machine (VMWare)

I have a personal setup at home using VMWare Workstation. I also have a set of Virtual Private Machines that run Squid, and therefore provide me HTTPS proxy tunnels. Using Proxifier, I can tunnel all ...
0
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1answer
36 views

Linux virtual server, direct routing (LVS/DR) on VPN

Is it possible to set up Linux Virtual Server on VPN? The real servers should lie on the same LAN segment. I want the real server to be a non-LAN server connected to the Internet. Could it be ...
1
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1answer
2k views

tap interfaces always disabled in linux bridge

I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this purpose I do: #Create the virtual interfaces tunctl -t tap0 tunctl -t tap1 ifconfig ...
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0answers
7 views

KVM or Xen for VGA Pass-through [migrated]

I'm in the planning phase of setting up a personal virtualization server. One of the virtual machines I want to setup is a Windows box with Steam. Ideally, I want to stream higher-end games to my ...
0
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1answer
1k views

setting CPU cache size and model for KVM guest

Is there any possibility to create a custom CPU model for KVM Linux guests, or at least to modify parameters such as cache size and model name? I know I can set CPU features, topology and pinning and ...
1
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2answers
68 views

XenServer, mapping SAN LUN to VDI

I have a few XenServer 6.2/6.5 hosts, and ZFS SAN datastore, providing iSCSI exports for VM storage. It's not an optimal solution to export huge 1-2 Tb LUN as XenServer LVMoiSCSI SR, because: a) no ...
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1answer
30 views

Finding correct IOPS to set limit with ESXi 5.5u2 and vSphere

We're running an ESXi 5.5u2 hypervisor that has a mirror of 2 15k SAS drives with a couple of VMs inside and we noticed some services become briefly unreachable if another VM is using all the IO. So ...
0
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1answer
27 views

Bloomfield CPU without Intel VT-x

According to my research an Intel Bloomfield CPU (more specific: a i7-920) should support Intel VT-x technology ...
0
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1answer
986 views

lighttpd virtual hosting configuration

I need help setting up virtual hosting in lighttpd. i have the lighttpd default webpage in /var/www/lighttpd dir and i have created other dirs for my other websites /var/www/web1.com/public_html and ...
47
votes
3answers
4k views

Why do systems generally disable virtualization by default in BIOS settings?

I have yet to see a system whose default configuration enables MMU and directed I/O virtualization. Often this necessitates rebooting and going into the BIOS to enable it if you want, e.g., 64-bit ...
1
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1answer
25 views

Can I migrate a VM between vCenter servers in linked mode?

Right now I have two separate vCenter servers (one older, one brand new), each managing 3 clusters of hosts. I will eventually need to get 300-500 VM's from the old clusters to the new. If I put the ...
2
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2answers
968 views

Xen Remus setup

Currently, I'm running the IT for a small organization, and we just purchased a new server to replace our aging Dell poweredge. As the Dell isn't so bad as to be junk, I was hoping to set up Xen on ...
1
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1answer
54 views

Migrating AWS EC2 m3.large to m4.large

New m4 instances look much better than previous m3 instances (regarding performance and pice), so I'm going to make them as default instances for our cloud services. These services ran before on m3 ...
1
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2answers
18 views

Setting up emergency console access with xen

On Gandi (or other providers) you can activate an emergency console to your VM. It binds a SSH channel to a temporary IP and port. I have my own server running on xen. I would like to implement an ...
7
votes
1answer
607 views

Hardware requirements for 100 virtualized high performance Windows 7 desktops?

We are debating whether to add Client Hyper-V or VMWare Player Pro to new Windows 10 desktops later this year and have our developers run their developer tools in a Windows 7 VM on their local ...
1
vote
1answer
1k views

DCOM Authentication Fails to use Kerberos, Falls back to NTLM

I have a webservice that is written in Classic ASP. In this web service it attempts to create a VirtualServer.Application object on another server via DCOM. This fails with Permission Denied. However ...
1
vote
1answer
1k views

Debian Jessie Qemu KVM GPU Passthrough to Windows Virtual Machine guest Virt-Manager error Bus PCI not found

I'm having problems with Virt-Manager not wanting to boot a VM and giving error: Error starting domain: internal error: process exited while connecting to monitor: char device redirected to ...
1
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2answers
1k views

VMWare and Turnkey Linux appliance can't access network

I have a VMWare ESXi cluster running many Windows and Linux VMs perfectly. I have installed the Turnkey Linux Redmine appliance, and am having a lot of trouble getting the networking to work ...
2
votes
2answers
370 views

Azure public endpoint SSL termination

In Azure, is there any way to set up an HTTPS endpoint directly on the public VIP, as opposed to joining each VM to a load balanced set, so that I can associate this endpoint with the SSL certificate ...
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0answers
17 views

Deploying the Virtual Appliance of Nexpose

I am going to deploy a Virtual Appliance in virtual environments. The Virtual Appliance is tested and supported in the following environments: VMware Player 4.x or later VMware Workstation 8.x or ...
2
votes
1answer
972 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: ...
0
votes
1answer
15 views

Is it possible to transfer OpenVZ VPS image to XEN platform?

I'm having a memory related issue with my vps on openvz platform and I guess that my hosting provider is overselling RAM. So, I'm thinking to move on a xen platform since ram cannot be oversold but I ...
0
votes
0answers
10 views

migrate xen server to new HDD

I have a Xen Server with multiple VMs that are mirrored with DRBD to a Backup Server, and it's running out of space. I want to migrate it to a bigger Harddisk, but I'm not sure about how to go about ...
0
votes
0answers
14 views

libvirt: can it provision network interfaces where the network backend is running in a domU rather than dom0?

Thanks to a great blog post, only slightly out of date [1] I've managed to configure a dom0 which has no networking at all: physical network interfaces are passed through to dedicated domU guests ...
17
votes
12answers
25k 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?
2
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0answers
27 views

Security concerns w/ physical vs virtual network gateways [closed]

I am in the process of setting up a private network that uses a gateway system for access to certain services on systems behind the network, e.g. ssh, ftp. I have some experience using virtualized ...
9
votes
3answers
5k views

Do I need to run a NTP server in every VM?

Couldn't the guests somehow inherit the system time of the host ? It seems kind of pointless to run the same daemon to get the same results on the same machine multiple times but I didn't find ...
2
votes
1answer
321 views

How to create an Amazon AMI with HVM from scratch?

All the instructions I find online start with an existing AMI, but I would like to create an AMI from scratch using HVM instead of PV. Does anyone know the procedure for doing this?
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2answers
9k views

virsh: VM console does not show any output

I have a VM which I can start with virsh. According to virsh dumpxml VM1, this is the allocated pty: <serial type='pty'> <source path='/dev/pts/6'/> <target port='0'/> ...
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1answer
1k views

Error while creating VM using virt-manager on Xen

After a great struggle I got my XEN installed now I am using virt-manager and trying to create a VM. Since my H/W doesnt support full Virtualization using the Para Virtualization installation over ...