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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1answer
172 views

Hyper-V How to define “auto revert” to a snapshot after each reboot

I'm using the built-in Hyper-V that comes with Windows Server 2012 R2 and I'm looking for the option that lets me to set "auto revert" (or "auto apply") to a specific snapshot after the machine is ...
3
votes
1answer
249 views

How to protect an appliance from unauthorized copy?

At the company I work for, we plan to build an appliance to simplify the deployment of our products. We will probably run a VM with docker containers underneath (containing the products) and a web ...
1
vote
1answer
62 views

Application upgrade - in-place or new VM?

We have a virtualised Windows infrastructure and generally have dedicated servers (1 app = 1 server). I am about to commence an upgrade project and am trying to decide if there is any benefit in ...
0
votes
2answers
101 views

On EC2 - How can one instance telnet the other using ip-XXX-XXX-XXX-XXX format

(Noob @ unix&EC2) I created 2 ubuntu instances at EC2. I needed to cluster one of my services and following the tutorial I used the format ip-XXX-XXX-XXX-XXX (i.e. ip-123-456-789-012) as ...
0
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0answers
158 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
vote
2answers
250 views

ESXi 5.1 crashing

I got a ESXi 5.1 installation which is irregularly crashing with a error output like the following: The server has got the following hardware: Supermicro X8DTN+ Mainboard 2 x Intel XEON E5606 6 x ...
-4
votes
1answer
49 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) - ...
26
votes
11answers
3k 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 ...
0
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0answers
20 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
127 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 ...
-8
votes
1answer
168 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.
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votes
2answers
94 views

associating HP MSA2000 G3 to a virtual machine on windows server 2012 DC

Basically i wanted to have a Debian Squeeze associated to the SAN HP MSA200 G3 but due to lack of support i have now planned to deploy Windows Server 2012 Data-center on 2xHP Proliant DL380p G7 ...
0
votes
1answer
1k 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 ...
3
votes
1answer
2k 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 ...
0
votes
0answers
68 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 ...
4
votes
2answers
344 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
366 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
1k 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
1answer
894 views

“kernel: Cannot read proc file system: 1 - Operation not permitted” — millions of such messages each minute in kern.log on OpenVZ VPS? [closed]

I'm seeing repeated never ending such messages in kern.log on my OpenVZ ubuntu 12.04 server. Mar 2 06:23:33 localhost kernel: Cannot read proc file system: 1 - Operation not permitted. Mar 2 ...
0
votes
1answer
527 views

Can't RDP to VM over Azure Point to Site VPN

I set up a point to site VPN from my computer to my vnet in Azure. Everything connects normally and even on the portal it says the tunnel is established. When connected to the VPN, I am still unable ...
0
votes
0answers
26 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
vote
1answer
977 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
78 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
vote
0answers
175 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 ...
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votes
2answers
96 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
1answer
66 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 ...
3
votes
2answers
276 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 ...
-1
votes
1answer
286 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
2answers
911 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 ...
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
2answers
162 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
5answers
242 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
0answers
115 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, ...
9
votes
3answers
774 views

What does ZeroVM virtualize?

I'm having a bit of trouble wrapping my head aroung ZeroVM. Let's say I want to run Wordpress. One option is to lease a hosted virtual server running VMWare, Virtualbox, Xen, CoreOS, or something ...
0
votes
1answer
31 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 ...
2
votes
3answers
513 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, ...
0
votes
2answers
91 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 ...
0
votes
0answers
311 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 ...
1
vote
2answers
125 views

KVM Disk Formats: Portability

I have recently begun experimenting with the KVM virtualization infrastructure. After deployment, I used virt-manager running on a management computer to build my first guest. I notice that, by ...
1
vote
0answers
26 views

Would using containers be appropriate for a virtual lab?

So far i have been running a VM lab using virtual box, however functionally i cant see a difference between using virtualbox and a container based virtualization application, such as lxc. This is ...
1
vote
3answers
623 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 ...
-1
votes
1answer
1k views

KVM-Host OS recommendation [closed]

I am about to migrate a server installation (one OS) to a newer hardware and wish to enable/use KVM. So the hardware is fixed (https://www.hetzner.de/hosting/produkte_rootserver/ex40) , now I got the ...
0
votes
1answer
64 views

How to benchmark a whole storage infrastructure

I'm a 100% sure that I'm not the first one to consider benchmarking a whole infrastructure, but yet I haven't found any relevant information on how to face this challenge. As I guess we all know what ...
0
votes
1answer
70 views

Combining 3 physical servers into 1 [closed]

We have 3 physical servers (1 mail server, 1 file server and 1 "other"). I want to combine these into a single server running a virtual environment and then make images and backups so that if a ...
0
votes
1answer
76 views

Routing single v6 /64 range to virtual machines

I am building a virtualisation host, and I want my virtual machines to be available via both v4 and v6 IP address. The host I have (Xen 4.1.3 with Debian Wheezy in dom0) has one physical eth0 ...
0
votes
0answers
230 views

Azure VPN shows connecting but I can ping/rdp from local network

I set up a virtual network on Azure and connected it with Site to Site VPN to my local network. I am able to ping and RDP to the VM's in Azure from my local network. The problem is that the VPN ...
0
votes
1answer
259 views

Creating VLANs between network namespaces [closed]

I want to implement the topology shown in the figure below using network namespaces (ns1 to ns4). ...
0
votes
0answers
624 views

Dell 12G R720 Hyper-V host virtual/physical NIC stops working

On the host 1 physical adapter is plugged into our network, on host itself I have Hyper-V role. I have created a external switch and binded it to the physical Broadcom NetXtreme Gigabit Ethernet, box ...
-1
votes
1answer
46 views

Virtual machine and VPN clients on same subnet

I have a Linux server running OpenVPN-AS and vmware player which runs a windows 2003 server. I need the remote VPN clients to connect and access windows shares from the VM. I can't figure out how to ...
0
votes
1answer
39 views

Virtual Routing for root virtual machines on 1 IP

I wan't to install several (around 10) virtual machines on our server. We have 1 public IP-address assigned to it. I wan't to use virtualbox (and phpvirtualbox for administration). I have no control ...