A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system. It is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine.

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MS Exchange p2v process

Is that possible to virtualize MS Exchange Server 2007 without stopping it's services? In particular I'm interested in using VMware vCenter Converter Standalone Client for that purpose.
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5answers
7k views

Convert my Vista installation into a virtual machine

I am a bit of a newb with virtual machines, so go easy on me. I am currently dual-booting Windows 7 and Windows Vista. I want to convert the Vista installation into a virtual machine, and then remove ...
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3answers
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Synchronize vmware virtual machine

I have 2 Linux Host VmWare Virtual Machines: one in a desktop and the other in a laptop. They use vmware player. What is the best way to synchronize the Virtual Machines? They are never used in the ...
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2answers
1k views

(Eucalyptus, KVM) Why we need to split a VM into kernel image, ramdisk image, and disk image?

I'm new in using cloud computing technologies. There is a popular cloud software called Eucalyptus. I found that the way to start a VM in Eucalyptus is very different from Virtualbox. In Virtualbox, ...
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2answers
518 views

How do I create a team in ESXi Server?

I have three VMware Workstation 7.03 VMs collected in one team that works great on Workstation 7.03. I would like to convert/transfer the team to ESXi (I have a working host) but the VMware Client ...
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1answer
339 views

Need to move VM to another host with different cpu

I currently have a VM configured with CPU 1 socket & 8 cores per socket. I need to move this VM to another ESXi 5.5 host which has 2 CPU sockets with 6 cores per socket. Will I will able to run ...
3
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1answer
64 views

Virtual Server HDD shrinks without apparent reason

We have a virtual hosted Linux server, and in the last few months every now and then the HDD shrinks from 400GB down to the exact byte count that is in use. All existing data can be downloaded and ...
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2answers
280 views

Hardening Virtual Machine

I have a CentOS based product I'm looking to distribute it as a virtual machine (VMWare, XEN and KVM) and I have been lately assessing the steps needed to protect the VM. The VM's data shouldn't be ...
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1answer
1k views

Getting same IP address for cloned Virtual Images

I was trying to install 3 VM and instead of creating them individually (by using the New VM) I actually cloned them. Now after I start the VM (they are running in the bridge mode) all the VM's are ...
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5answers
819 views

How to keep track of vm hosts and guests and IP addresses?

Internally, we have several VM hosts. We are constantly provisioning new guests on these hosts. What tool to you guys use to keep track of what hosts hosts you have out there, the host system stats, ...
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1answer
239 views

Performance of Virtual machines on very low end machines

I am managing a few cheap servers as my user base isn't large enough to get much more powerful servers. I also don't have the money lying around to invest in a server to prepare for the larger user ...
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3answers
215 views

What's the best way to work out if a virtual server is overloaded?

I have a series of virtual servers. I'm running a command to login to each one and take a look at the load averages using uptime. What's the best way to work out if load values represent overloading? ...
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1answer
732 views

How to move Hyper-V virtual machines to Azure with minimal impact?

My company is in the process of transitioning some of its on-premises services to the Microsoft cloud; some of them are being replaced altogether by hosted services (Exchange, SharePoint); some other ...
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2answers
253 views

How can I keep important VMs in memory without disabling swap?

VM Host -> Xenon E5-2440 w/ 48G mem... Everything runs CentOS6.5 (2.6.32-431) I have 4 guest VMs running each w/ 2G of memory. Their disk images are local files. The host machine is also running a ...
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2answers
2k views

How to edit/add file in VMDK

I have a VMDK (with several partitions) file which I need to modify. It is not attached to any particular virtual machine. I've tried using vmware-mount (from the VDDK toolset) in on Ubuntu server ...
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1answer
472 views

Use SSHFS on XenServer 6.1

On Xen Server 6.1, to backup my VMs, I use a script based on the following tools: xe vm-list to build a list of the VMs to backup xe vm-snapshot to take a snapshot of the VMs xe template-param-set ...
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1answer
260 views

Sync virtual machine hostname to displayName in VMware ESXi 5.1

How can I read the paramater called displayName in the .vmx file or "Virtual Machine Name" in vSphere Client from within the VM. If this is possible with vmtoolsd I haven't found it yet. ...
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1answer
284 views

VM Partitioning

If this isn't the right place to ask this please redirect me. I'm using hyper-v to create virtual machines, I have 1.6TB to use, I have the parent on a partition of 50GB, how should I divide up the ...
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2answers
2k views

Can you operate a lmgrd license server on a linux VM?

We are running the lmgrd license server on a bare metal linux system. From my understanding, a Linux-based lmgrd uses the MAC address of the primary ethernet board as the parameter from which the ...
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2answers
354 views

ESXi / OpenSolaris / ZFS / Linux

I've been using my Opensolaris BOX for while, with 6 internals drives under ZFS. More recently I've been playing with ESXi and i've got to say this platform is amazing; therefor my plan is to buy a ...
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1answer
848 views

ESX shut down VMs when some but not all storage paths failed

I've been on hold now for an hour waiting for VMware support and am betting serverfault can beat them to the answer! I am running ESX 4.0 and 4.1 on 6 HP blades, using FibreChannel LUN storage. We ...
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1answer
966 views

Hyper-V performance comparisons vs physical client?

Are there any comparisons between Hyper-V client machines and their physical equivalent? I've looked around and can find 4000 articles about improving Hyper-V performance, but I can't find any that ...
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7answers
9k views

Problem booting virtual machine after converting VMDK to VHD

I used the VMWare VCenter Converter Standalone Client to convert a physical drive on my old PC to a virtual drive. The conversion worked fine and I ended up with a valid VMDK file. Next, I wanted to ...
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1answer
523 views

Limit httpd.exe CPU usage

We are using Collabnet Subversion Edge in one of our VMs, and occasionally one of the httpd.exe processes spikes to ~100% and just sits there. I believe it's interfering with our overnight backup ...
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1answer
6k views

Performance issue of Server 2012 VM on ESXi 5.1 U1

I'm having issues with a VM, as stated in the topic, that runs on ESXi U1, build 1065491. The machine is sluggish and i can't figure out why.. Here's the details. It runs on a Dell T420, has ...
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1answer
577 views

ESXi 5.1 on Poweredge 510 freezes after base-esx update

Background / Problem Just experienced an issue where an ESXi host was upgraded from 5.0 --> 5.1 perfectly fine. Then, I did a scan and remediated a patch (ESXi510-201210401-BG) Looking into the host ...
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1answer
2k views

Installing Centos 6 using virt-install over SSH with no graphics - beginner

I have a Centos 6 box with virtualised CPUs that is ready for installing a virtual OSs. I am installing remotely over SSH and my Centos 6 box has no GUI (no GNOME etc) so it's purely command line. ...
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1answer
417 views

Getting CPU steal times on Ubuntu 11.4 Virtual Box

I'm trying to check on CPU steal times in a virtual machine. The goal is for me to be able to detect if my app is running in a VM on over-committed hardware. I'm currently just testing, in ...
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2answers
1k views

How can I restore VM on a new Hyper-V server?

I was working gladly with my VM on my local Hyper-V server. But, after installing some updates on the host the system only show the famous blue screen. I couldn't start my host so I reinstalled it and ...
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1answer
2k views

Using m0n0wall in a VM for testing

I'd like to use m0n0wall inside a (VirtualBox) VM to play about with and see what it can do. Ultimately the goal is to have a number of virtual machines connected to a internal virtual network which ...
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1answer
3k views

Using Windows XP Mode Virtual Machine on a Domain

I've followed the instructions and installed and configured the Windows Virtual PC XP Mode. I've added it as a machine on the network and can log into it and use network resources. In the process I ...
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2answers
83 views

How to setup loopbackon my Windows Server 2008 Virtual PC VM?

I am trying to setup a virtual sharepoint environment for development and need to be able to access my sharepoint sites on my host machine. From hours of google research, I discern that I must setup ...
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Move home directory on Azure Linux VM

I continue to encounter an issue moving my home directory to a new disk on a CentOS VM on Azure. On creation the server is configured to use a SSH key for authentication and the "no password" option ...
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1answer
174 views

How can I stop Azure from randomly replacing network cards on VMs?

Azure seem to have the habit of randomly changing the hardware configuration of virtual machines, without telling anything to the user. This is of course mentioned in the documentation, although ...
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0answers
271 views

ESXi 4.1 VM gone after hard reboot

I have a serious problem here. After I forced a reboot of a freezed ESXi 4.1 server, a VM is literally gone. When I ssh to the host and run ls -lah inside the datastore, it returnes: ...
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1answer
558 views

Most VMS refuse to start

Setup: Virtual Host, running server 2012, hosting around 10 production VMs Problem: Last night, 2 VMs stopped with no warning, event log notification, or any information. The rest of the VMs on this ...
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0answers
841 views

“Error: Unknown error” when trying to start virtual machine from VMware server

Problem We are running VMware Server 2.0.0 build-116503 on a Ubuntu 10.04 LTS server. There is a virtual machine installed, running Lotus Domino on Windows Server 2003. Ever since a sudden power ...
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2answers
4k views

problems configuring Filezilla ftp server on windows azure virtual machine

Recently I've been attempting to setup a filezilla server on one of azure virtual machines and cannot seem to get it fully running. I am currently able to get an initial connection, however subsequent ...
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2answers
1k views

How can I hide a Virtual Machine in the Hyper-V Manager, so that only administrators can see it?

I have a domain controller that is a virtual machine, last week a user logged on to it and shut it down accidentally. I need to prevent this from happening so I would like to hide this VM in Hyper-V ...
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6answers
10k views

Common and maximum number of virtual machines per server?

For a project I am trying to get real-life estimates for the number of virtual machines per server, both typically and maximally. Of course, the maximum number of VMs would be depending on the type ...
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4answers
553 views

VM Corrupted, what's the next step?

So one of our older VM's, which usually has no issues, is giving this error now when starting. It keeps going in a loop restarting and turning off with this error message. I figure it's probably ...
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7answers
8k views

How to shrink the size of a virtual machine hard disk

I have a Virtual machine hard disk over 20GB in size. But there are only about 8-10GB of files inside. I need to shrink this vhd file to a more manageable (actual) file size. I've tried using the ...
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7answers
6k views

Copy VM from ESXi 5 to ESXi 4?

Searched Serverfault (and Google) for this, haven't been able to find an answer... We copied a VM (folder and files) from an ESXi 5.0 server (5.0.0-623860) to an ESXi 4.0 server (4.0.0-261974). (Also, ...
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3answers
3k views

How to setup /etc/issues to show the IP address for eth0

I've got a couple of linux virtual machines with bridged interfaces, and I'd like the IP address of the machine to show up after the machine boot (in the login, where it usually shows the release and ...
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6answers
6k views

How to improve Hyper-V performance

I have a windows 2008 (RC2) server running Hyper-V with all of my company's virtual machines. Most of the machines are used to run Continues integration and test environment. Although each machine ...
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3answers
542 views

Would we be able to find out what VMs the parent server is using?

I am asking a rather ridiculous question here. Is there any way we can find out from the guest OS the parent OS and the VMs it is using? If it is possible, what command do we invoke from the guest OS? ...
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6answers
718 views

How to Create Two Virtual Private Servers on a single Physical Server?

I am a virtualization newbie. I basically have one physical server right now. And I want to create two virtual machines (both will be web servers with small databases and a few scheduled tasks) on ...
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3answers
12k views

How to reduce virtual machine disk size (Hyper-V)

I have server 2008 that runs several virtual machines. Due to an error each machine was allocated with a lot of disk space. I want to change the maximum size limit of the virtual machines but I ...
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2answers
6k views

How to rename a VMWare ESXi 5 VM physically?

When I create a VM on a VMWare ESXi 5 server naming it "MyVM" then "MyVM" directory is created on a data store and files like "MyVM.vmx", "MyVM.vmdk" etc. in it. I've renamed the VM and would like ...
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3answers
7k views

How to backup VirtualBox virtual server?

I'd like to setup a server running in a VirtualBox virtual machine on a Linux host system. What would be an effective way to backup this virtual server "whole", so that in the event of either a host ...