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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131 views

How do you migrate kvm guests from virtualizor to solusvm ?

I have a server that until recently had virtualizor in standard setup (and hosted a few guests - all kvm) / 200 Gb /vg_guests - 3.4 Tb Recently i stopped and disabled virtualizor services and ...
-1
votes
2answers
789 views

how do I install pdsh on centos 6? [closed]

I'm following a tutorial on how to configure a centos machine to be a node in a hadoop cluster for HortonWorks. I'm doing this on a virtual machine on VirtualBox. Sadly, since I am a linux beginner, ...
25
votes
11answers
2k views

When deploying a single server on new hardware, do you virtualize it or not?

There are a few questions that I've found on ServerFault that hint around this topic, and while it may be somewhat opinion-based, I think it can fall into that "good subjective" category based on the ...
25
votes
4answers
710 views

Will virtualizing a server mean another OS layer to patch and update, more work and greater risk?

I've done a search and have not found anything addressing issues regarding patching and system updates. I've got guidelines that say servers need to have necessary patches. If I have a VM host then ...
-4
votes
1answer
48 views

Single machine server with many operating systems [closed]

Could possibly with single one high end Server with supported Virtualization We can have: - DHCP Server (Virtual Machine 1), - Firewall (Virtual Machine 2), - Squid proxy (Virtual Machine 3) - ...
0
votes
2answers
372 views

What is the difference between -generic and -virtual kernels?

I am using XEN server 6.0 on machine and I want to install ubuntu 12.04 64bit. I want to optimize OS for running as VM. I choose to install from "http://archive.ubuntu.net/ubuntu/" but its showing ...
3
votes
3answers
2k views

How can import an existing linux machine into Rackspace?

How can import an existing linux machine into Rackspace is pretty much what I'd like to know. I've got a VM hosted in a datacenter, and I'd like to move that VM, which is configured and running ...
-8
votes
1answer
96 views

Use Hard Drive as Ram for Hyper-V [closed]

Is it possible to use hard drive space as virtual RAM for Hyper-v? I am using Windows Server 2012 R2 Enterprise as the host and we are running Ubuntu 13.10 as the client OS.
2
votes
1answer
95 views

Hyper-V 12r2 across 2 physical networks

Ok, so first off... I have done this multiple times with VMware and had zero problems so I assume I am missing something in Hyper-V. Hardware I am working with: Single Dell R510 Host Onboard Dual ...
0
votes
1answer
770 views

Install Windows Server 2008 Core on a Dell Optiplex 790

Does anybody have experience installing Windows Server 2008 Core on a Dell Optiplex 790? When I connect to the machine with the Hyper-V Manager Administrator snap-in, and try to create and run a ...
0
votes
0answers
15 views

How can I see which Xen guests are using which cpu pools?

xm cpupool-list will show how many domains are on each cpupool xm cpupool-migrate will move a domain to a different pool But I can't find a command to show which cpupool a domain is using, or which ...
2
votes
1answer
37 views

Saving the State of an Application using App-V or some other type of Virtualization Technology

I have an application that I would like to be able to create "snapshots" of (sort of like you might do with a virtual machine). Basically I would like to be able to allow the user to do a bunch of ...
0
votes
2answers
1k views

Can I run a Fedora VM on top of XenServer / ESXi? What's the closest alternative?

I am planning on moving to Citrix XenServer to host a couple of VM's and am looking to find out if Fedora is in fact supported. The site says it can run Red Hat, but aren't this and Fedora nearly the ...
3
votes
1answer
682 views

Hyper-V and AD --> recommendations for small site? [closed]

I have a dilemma about how to proceed with new AD / Hyper-V installation and would appreciate your views, experience and advice. Situation: we are a small company with single site (25 users) and few ...
1
vote
2answers
732 views

Set startup order for KVM virtual machines via libvirt?

I have some server applications failing because their virtual machine starts up before the database virtual machines. Anyway to configure libvirt to start them up in a certain order and possible ...
1
vote
3answers
2k views

libvirt: how can I make a domain start when the host starts?

I would like some of my domains to start automatically when my host starts (I'm using libvirt+KVM on ubuntu). I guess I could put some "virsh start..." statements in rc.local, but is there a way to ...
0
votes
1answer
589 views

How can I set up a VM of Solaris 11 / Sparc on Windows / x86 host? [closed]

I need to test a custom binary that was originally compiled for an earlier version of Solaris on Solaris 11. Being poor, I don't have a spare SPARC server lying around on which I can install Solaris ...
0
votes
0answers
57 views

Xen (SolusVM): Guest Windows partition is not auto-allocating free space

We are creating guest VM on Windows Server 2008 from the template we've built before but when we are giving our guest VM more disk space from the beginning it's not auto allocating that space. So when ...
45
votes
9answers
90k views

Creating a virtual machine in VirtualBox from a physical one

Is there any way to create a virtual machine that you can use in VirtualBox from a physical installation that you have? For instance, if I have Windows XP installed on a physical computer and want to ...
4
votes
2answers
301 views

Does LXC container performance depends of host load?

I am wondering if LXC could offer a full isolated benchmarking environment. Let's say we have 2 identical machines, with the same fresh Linux and without network connection. First machine has a load ...
4
votes
1answer
237 views

Optimization XFS on Linux guest in Hyper-V (VHDX)

In our company we're using Hyper-V (Windows Server 2012) hypervisor and VM to organize our in-company services in our data-center. I am supposed to set up Ubuntu 12.04 LTS guest for our main database ...
4
votes
2answers
600 views

SQL Clustering or Hyper V Clustering

We will soon be implementing our Dynamics AX installation. Our aim is to have high availability and we are working closely with our implementers. We raised the question to them about SQL and Hyper-V ...
3
votes
3answers
709 views

Hyper-V: Assigning VMs a public IP from a subnet

We are running a Hyper-V server on our Windows Server 2008 R2. I have ordered a subnet because we would like to provide each of your VM's with a public IP address. My data center provider (Hetzner AG ...
0
votes
0answers
24 views

Automated hostname availability for OpenVZ environments

for several years now I am administrating some OpenVZ Hardwarenodes with a fairly low amount of containers per node (10-20). I'm about to setup a new machine, and what's always bothering me is the ...
1
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1answer
311 views

Converting Hyper-V VMs to VMware ESXi VMs (Not with Live Migration)

I am facing a small issue for converting my Hyper-V VMs to ESXi VMs. I have 1 physical server. On that physical server I have Windows Server 2008 installed with the Hyper-V role. My 1 Hyper-V host ...
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votes
1answer
56 views

Implementing hardware virtualization for custom hardware

When using QEMU/KVM there are certain network adapters that are supported and emulated. If one wanted to emulate the guest OS's original network adapter (e.g - a Broadcom interface that was present on ...
1
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0answers
124 views

Virtual Machine IP address type changed from static to dynamic

I am testing VMM in a lab environment, I have one VM host machine with one physical network adapter that has been allocated an IP address in the 192.168.1.0/24 subnet on a router. I have create ...
-2
votes
2answers
94 views

Generate ISO from installed system

As part of my infrastructure I have many Virtual Machines running different Linux distros, under Proxmox using OpenVz. My problem is that I need to export into a personalized installable ISOs some of ...
0
votes
2answers
207 views

“Insufficient Resources” general system error when starting ESXi VM through Vsphere client

I'm trying to set up a CentOS installation on my ESXi host using VMware VSphere client, and despite my efforts, I continually receive an error. After creating the VM and attempting to start it for the ...
0
votes
1answer
50 views

How to automatically start virtual Networks using virsh?

Following this answers, configuring domains to autostart using virsh is easy; set aside they fail with following error message: error: Failed to start domain [name] error: internal error Network ...
0
votes
1answer
294 views

Is there a way to give a xen vm with windows more than one virtual cpu?

I have a quad core machine which is running debian with a xen kernel. I am running a couple linux servers on there which don't do a lot of CPU intesive stuff, but I have there a windows server 2008 ...
0
votes
1answer
101 views

Access to Web-application inside Docker

Here are what I have: the physical computer (1) i have installed the virtual machine on this computer (virtual box, bridged networking, ubuntu server, ip=192.168.1.80) inside this virtual machine I ...
0
votes
1answer
681 views

Debugging the VMware virtual network adapter vmxnet3 — packets received by the adapter never make it to that port's listener

Background: I have a virtual instance of Windows Server 2003 running from a VMware environment (although I only have access to the actual guest OS right now). I have a custom .NET Windows service ...
3
votes
2answers
161 views

Does it make sense to create a “private” host-only network or vSwitch for VM-only communication on a VMware vSphere host?

Currently I have one vSwitch with a few networks on it, which talk to other devices and use VLAN tags. I have Internet, Internal, Management (VMKernel), and WWW (LB pool). However, for things like SQL ...
4
votes
4answers
2k views

Visualizing Xen Performance and Utilization

VMWare's vSphere console and Veeam's monitoring utilities do an admirable job of showing admins various statistics on CPU usage, memory usage, percent utilization, etc. of VM's and the hypervisor ...
3
votes
1answer
202 views

Private network between two KVM VMs

I'm trying to connect two KVM hosts together with a transparent ethernet link. I'm using Proxmox VE as the host and have configured 2 KVM VEs with ethernet interfaces and joined them to a single ...
0
votes
5answers
207 views

Exploring various Hypervisor solutions for small scale deployment [closed]

I've been looking at various virtualization products such as KVM, XEN, Virtualbox, Open stack and Eucalyptus. KVM, XEN, and Virtualbox seem to be easy to use and so far to me make the most sense to ...
0
votes
5answers
2k views

Update/change hard disk drivers without booting Windows

I am trying to convert a physical server to a virtual one. I know that there are tools for this, but they either cost a lot or have extreme requirements. I have tried to use Norton Ghost to make a ...
-2
votes
2answers
478 views

VirtualBox inside Hyper V guest [closed]

I am trying to run a Ubuntu guest in VirtualBox (configured using Vagrant) installed on a Win 8.1 guest running inside a Win 2012 R2 Hyper V host. I disabled Hyper V on the Win 8.1 guest. I am ...
-1
votes
1answer
168 views

vmware disk becomes read-only on linux guest [closed]

I have Linux CentOS as guest OS on VMWare Workstation, the host is Windows Home. The Disk becomes read-only, every-time i untar a huge file (which results in hundreds of small files) somewhere in the ...
2
votes
3answers
366 views

Docker: How to partition a large server?

So I have a Dell XS23 Rack with 8 CPUs and 40G Ram with vmware esxi in my production environment. The way I'd partitioned it before was 2 API servers (quad core, 8gig ram) 2 DB servers same specs, ...
10
votes
4answers
14k views

Best Practice: vCPUs per physical core

I am trying to find some documentation or best practice guides for virtualization with respect to provisioning vCPUs per physical core (of a CPU). If it matters, I am looking at vmWare for the ...
0
votes
1answer
30 views

How can I run image by tag

$ sudo docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE ubuntu 13.10 9f676bd305a4 9 days ago ...
0
votes
0answers
82 views

How to diagnose sporadic performance issues?

I have a web application with very varying response times and can't find out what causes that. That's the (quite complicated) setup: Powerful (i7, 32GB RAM) dedicated server in a German data center, ...
1
vote
3answers
257 views

How can I automate and run post installation commands in Azure Virtual Machines?

I need to deploy Azure hosts and configure them according to a pre-defined script once they are loaded. Is there any example, guidance,or tutorial on how to modify an Azure VM once the instance is ...
0
votes
1answer
29 views

vCenter VUM version for my application

I have ESXI 5.1 u1 loaded on the three 520's in our VRTX. This is the latest version currently support by the Dell VRTX system. I am managing with version 5.5 of the vCenter appliance. My ...
0
votes
2answers
75 views

Microservers VS Virtual Servers

I am reading this articles in regard to microservers : 10 things you should know about microserver Microservers : What you need to know It seems to conclude that micoservers are best tailored ...
2
votes
3answers
967 views

OpenStack: Can I convert a volume into an image?

I am trying to figure out the path of least resistance in OpenStack to get from a live CD to a disk image that can be used for deploying new guest instances. If you boot an OpenStack instance from a ...
0
votes
1answer
2k views

Veeam Zip fails with different error messages

I'm having issues with Veeam Zip 6.5. I'm trying to backup to a NAS that I have done successfully at 3 other locations but for some reason this one location is throwing errors. It fails on ...
0
votes
0answers
246 views

XenServer open vSwitch performance downgrade

I'm trying to capture part of an inter hypervisor traffic between 2 virtual machines running over XenServer 6.2. I want to mirror some TCP sessions to a 3rd virtual machine with minimum affect to the ...