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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How should I package a VM template to be cloned repeatedly, along with a single large storage volume for all instances to share?

I have a number of VMs that were based on the same template, each with about 2GB of storage. They all share read-only access to a 50GB volume (currently via NFS, but that is up for negotiation). I ...
0
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1answer
122 views

XenServer virtual network firewall

We are setting up XenServer machine with several VMs for our ecommerce business. We are intending to distribute services across several VMs (1 for web, 1 billing, 1 email, etc.) The XenServer machine ...
0
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0answers
47 views

Xenserver firewall consideration

We are setting up Xenserver for a production environment with seperate VMs for a website, billing, control panel, mail. My question is, should we rely on each server's IPtables or is it necessary to ...
0
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1answer
150 views

Move big file from VM to host hypervisor in vmware vsphere

I have a big file (220G) I would like to move from a virtual machine to its host. The file is actually another virtual machine's disk file. for other smaller files, I would have done that with a ...
1
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1answer
39 views

Under what circumstances could multiple VMs and mounted drives have corruption at the same time?

Today I had to fix 3 VMs with near identical file system errors all running Redhat 5 or 6. Basically the VMs had corrupted inodes and remounted / as a read-only file system, also corrupting several ...
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2answers
522 views

When emulating an OpenWRT Router in VirtualBox how do the network settings relate to a real world router?

I'd like to setup OpenWRT in VirtualBox for purposes of testing a network configuration before putting it on a live physical router. How do the adapter settings relate to the real physical ports on ...
0
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1answer
169 views

Configure GRUB on XEN VPS

I have a xen VPS with debian 7 x86_64 installed on it. The operating system comes with GRUB2 installed on it. The problem is that while runnnig apt-get update apt-get upgrade -y GRUB says The GRUB ...
2
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2answers
229 views

RHEV Manager best practises

I've been playing around with RHEV. I was wondering what is the best practise for the RHEV Manager in terms of installation. In a big production environment is it best for the Manager to be installed ...
1
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1answer
312 views

Which CPU model to set for guest KVM when processor is Ivy Bridge?

For a KVM host with an Ivy Bridge processor, which MODEL should use for CPU>CONFIGURATION in Virtual Machine Manager? Ivy Bridge is not available.
2
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4answers
253 views

new hyper V High Avaliability setup and SMB 3.0 storage

I am looking at building an new 2012 R2 with Hyper V setup, everything has to be HP hardware. 2x HyperV 2012 R2 servers running 20-30 VMs. These will be dual 6 core xeons with 128gb of ram. 2x 2012 ...
0
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0answers
26 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
1
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1answer
91 views

5-7 second latency between Apache server and MySQL server when website calls on database server

I am currently running a virtualized environment for my web and db server. When I access the web server or the MySQL server individually, they are both fast. I also have websites running on the web ...
0
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1answer
89 views

CloudStack New Install / Infrastructure Questions

I’d like to set up a public cloud for web hosting (cloud shared hosting, cloud vps, cloud servers) for a new venture, using Apache CloudStack platform. ----- Question #1 ----- What is the proper way ...
0
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2answers
102 views

Firewall high availability

Context: My company is on the verge of a major network improvement, we will expand our network to remote offices via radio bridges. The firewall will be handling: 3 mission critical networks 3 non ...
0
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1answer
68 views

Intel VT enable but not found in xenserver

I have an IBM 206M with this CPU --> Intel Presler Pentium D 950 Socket LGA 775 P4D 3.4 Ghz 800Mhz FSB 4M Cache EM64T. It has Intel Virtualisation tecnology. But when i want to install xen server, the ...
1
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1answer
29 views

Unable to add a vCenter server to VMware Horizon

I've installed VMware Horizon on a virtual machine which is on my ESX. In order to configure it, I have to specify the vCenter server into the Horizon's configuration. But when I try to specify the ...
0
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0answers
37 views

How does Xen resize VMs without shutting them down?

I'm experimenting with Xen on a spare machine and I noticed that it can resize the RAM and CPU allocations of my VMs without shutting them down first. VirtualBox, VMware Fusion, etc. can't do the same ...
1
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2answers
73 views

Deploying a private DAAS?

I am an electronics student who is doing an internship at a Data center. (have small to no knowledge about virtualization, cloud, computer networks). My friend and I were given a chance to deploy and ...
0
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1answer
117 views

How to exclude VHDX disk from snapshots on Hyper-v

(I'm using the built-in Hyper-V that comes with Windows Server 2012 R2) I want to play with my snapshots while I have a separate disk that would not be affected by those snapshots, thus I can store ...
0
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1answer
70 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
240 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
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1answer
58 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
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2answers
80 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 ...
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0answers
109 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
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2answers
176 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 ...
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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) - ...
23
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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 ...
0
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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
90 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
88 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.
0
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2answers
81 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
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1answer
468 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
456 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
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0answers
54 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
261 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
195 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
499 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 ...
2
votes
1answer
456 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
188 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
22 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
214 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
52 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
114 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
92 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 ...
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votes
0answers
164 views

Hyper-V: NAT Port Forwarding [closed]

I rented one dedicated server (Win Server 2012) with one adapter/static IP address. I want to install Hyper-V and guest OS (Win also), that can expose some of its services to the internet. For ...
0
votes
1answer
48 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
143 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
141 views

vmware disk becomes read-only on linux guest

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 ...
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votes
2answers
387 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
28 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 ...