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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Can't export OVF VM from Vpshere 6

I am trying to export a virtual server (Ws2008 R2) to our NAS as I need to provide a copy to an external tech. I can only stop the server during weekends. The machine is roughly 1Tb in size. ...
3
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2answers
2k views

How do you set an availability set for an existing VM in azure?

I am using the new Resource Manager type of virtual machine. Now I need to add this into a load balancer (already configured) but I can't find how to assign this VM into the Availability Set so I ...
2
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2answers
183 views

Will I lose all my data and hosted websites if I change size of Virtual Machine (VM) from Small to large from Azure portal?

Let's imagine I have created an Azure virtual machine, a small one initially. I have installed SQL Server and created databases. Also hosted to website by IIS on the virtual machine. I can see the ...
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0answers
68 views

Docker web development environment and VirtualBox file sharing protocol

I'm guessing that this question has been answered previously, but I can't find a good solution to that super basic issue! I've created a development environment using Docker on top of a windows ...
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1answer
52 views

VM inbound traffic only works with outbound traffic at same time

I've recently configured a VM on a low-end rental VPS service to try to improve load times for a web site I'm running. (The web site makes use of high-reliability technologies that require full access ...
2
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1answer
82 views

Drawbacks of setting a high I/O timeout?

I'm working on several Linux VMs whose partitions are mounted on a NetApp NAS. This NAS periodically experiences a very high iowait which causes the VM disks to switch to read-only mode, crash, or be ...
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1answer
72 views

how to backup centos7 that run several vm's with ovirt

I have a centos 7 machine. on this machine I've created several VM's using ovirt. I want to create a backup that machine(all the vm's and the server itself). I know there are many way to backup a ...
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2answers
75 views

Azure Virtual Network doubts

I would like to set up a Virtual Network in Microsoft Azure but I have a few doubts about it. Can I link a Virtual Machine in another Azure account to my VN? Is it possible to forward all traffic to ...
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1answer
27 views

Effects of Third Party tools on Hypervisor Performance

I am using XEN for managing and introspection of VM's. I used DRAKVUF for sake of introspection. XEN provide built in tools for managing VM's. But I want to use LibVIRT for management. I want to know ...
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votes
1answer
74 views

Slow http response time from vm [closed]

I am currently hosting a test website under a 8 vcpu and 2gb ram virtual machine using nginx and php-fpm, the host machine is hosting other virtual machines doing the same thing with 10gbps network ...
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votes
1answer
19 views

Strange behaviour with linux permissions

Hopefully someone can help me out, my site isn`t working ATM due to an issue. I changed the apache MPM and for that I needed to change virtualmin to have it run as virtualserver owner (was the only ...
3
votes
1answer
60 views

Professional workflows to Deploy via Git?

I have written a set of bash + crontab scripts that basically let me take a new linux server and deploy a git repo to it. All fine and good, but it's a rather piecemeal process and am wondering if ...
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0answers
76 views

Change default Locale on creating Azure VM

In Windows Azure all instances are created with the en-US locale by default and if your application is deployed outside the US, and you’re not handling this properly, this may cause some confusion. ...
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1answer
236 views

Azure create VM from existing disk using the new portal

How do you create a vm from an existing disk with the new portal (not the classic portal)?
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0answers
226 views

High IO wait times on DigitalOcean VM

I've had a DigitalOcean VM running Jenkins without any problems for the past year-ish. This week suddenly problems started happening. It started with that one day I noticed some apt related process (...
2
votes
0answers
95 views

How Hyper-V server 2012 shares processor usage over virtual machine?

I have a Hyper-V server 2012 installed on my physical server (bare-metal). For testing purposes I created 2 VM machines (windows 7) and began testing server processor usage while VM runs at 100% ...
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0answers
50 views

Hyper-V Host Shutdown script

So I have a cluster for Hyper-V and am working on a script to move all active VMs to a host over the weekend, put the hosts in maintenance mode, and then poweroff all but one of those hosts for the ...
1
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1answer
83 views

Azure Internal Load Balancer Ignoring 2nd VM

I've got 2 Ubuntu VMs on Azure (classic VMs on old management panel.) I created both of the under the same Cloud Service. I also created a load balanced endpoint 80 (public) to 80 (private) with both ...
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0answers
165 views

How to deploy OVA with ovftool and force vCenter get changes or avoid orphaned VM?

I am using an ESXi for tests purposes. I am creating an instance of product from an OVA, getting its IP and running tests for this IP. This ESXi is connected to vCenter(20+ ESXes). But I am using an ...
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0answers
26 views

Redirect external ip of server to external ip of virtual machine

I have a server with multiple virtual machines. Let's say this is my server ips: Internal 1.2.3.4 External 5.6.7.8 Now, if i go to 1.2.3.4:8082 it goes to my app (I redirect :8082 to de internal ip ...
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1answer
102 views

CentOS DHCP server gives DHCPNAK upon DHCPREQUEST from client

I'm trying to setup a DHCP server on a virtualized host only network and I'm having some issues. Currently I'm only running two VMs one being the server and the other being the client both VMs are ...
1
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1answer
2k views

Insufficient free space: X extents needed, but only Y available

I'm trying to extend a LVM in a Vmware Workstation 12 Pro CentOS VM. Below are the steps I am following and where I stopped because don't know how to folow from there: Create the primary partition ...
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3answers
93 views

Unable to rdp after fw change

VM Windows Server 2012 r2 I was able to rdp to this VM without issues until today. While logged in via rdp I was in control panel > firewall and I noticed that there was a message saying 'use ...
2
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0answers
25 views

Remove Hardware Support From Qemu [closed]

I am currently experimenting with Qemu 2.4.1 and I'd like the support for few hardware to be removed. Say like USB/Mouse/SoundCard etc. While I was tinkering with the source code, I was able to ...
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0answers
44 views

Virtual Desktop Setup for Small Team [closed]

We have a 24 GB RAM and Quad core Workstation need to be ready as Virtual desktop Server. The need is the Developer(5 users) must be able to Login from LAN or Internet to the Workstation in order to ...
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0answers
183 views

Using KVM with macvtap and VLANs for VM

I want to use the optimizations given for the ASAv (Page 18) which should run with KVM. I am using Ubuntu 14.04 LTS and I should configure macvtap for an higher performance. It just says the ...
2
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0answers
425 views

“The location constraint is not valid” When Creating Azure VM

I've just signed up for an Azure account to test it out as a possible hosting solution, but when I try and create a VM from the VM Depot I seem to get the error "The location constraint is not valid", ...
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0answers
28 views

Can't access Apache webserver setup from virtual machine [closed]

I have installed Apache Webserver on my CentOS virtual machine along with the mod_security, then I start the apache webserver using the following command, cd /usr/local/apache2/bin ./httpd -k start ...
2
votes
1answer
38 views

New linux releases on old hypervisor

I have just bought a Proliant DL360 G5 for learning and testing. It's an old machine but it's enough for me. When I looking supported operating systems on HP's support pages, I noticed that the ...
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1answer
56 views

How do I add storage to a VM so that the added storage is dedicated to a new directory?

I have an Ubuntu server with virt-manager. I have an Ubuntu VM running on this host from a qcow2 file. I don't use separate disk files or img files besides the qcow2 file. I want to allocate 50 GB ...
0
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1answer
80 views

Why doesn't my Web App deployed in an Application Service Environment which is associated with a VNet see my VM?

Scenario: VNET address range is 10.2.0.0/23 with Default subnet of 10.2.0.0/27 Brand new ASE instance, configured to use the VNET from step 1 and on that same Default subnet MySQL VM joined to VNET ...
2
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0answers
318 views

Virtualbox keeps aborting

I'm running Windows 7 Enterprise on my host, and a Ubuntu VM on Virtualbox. My VM keeps aborting periodically. This is what I see in my logs: VBox: 00:00:35.201091 supR3HardenedErrorV: ...
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1answer
18 views

VMware shutdown host from a virtual machine

There is any way to shutdown my host from one of my virtual machine? I've an host with 2 VM one with linux and one with windows server and I would stop entire host from one of this. Is it possible?
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0answers
38 views

xe vm-disk-list >Error Multiple matches VMs found

Dell equallogic on XEN_VERSION='4.1.3' storage size 2tb usage 96% toal virt. alloc. 500gb there is only one snap shot for each vm I dont know who consumed the space? xe vm-disk-list >Error ...
0
votes
1answer
28 views

Azure virtual machine connection issue

We have experienced an unstable connection to our azure virtual ubuntu server for the last week. We are using pingdom and it's reporting that the site goes down randomly a few times per day, but only ...
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0answers
35 views

Virutal Server 2012 R2 on VPN and LAN

I'm running a virtual server 2012 R2, the host has only 1 physical NIC. On the server, I have a VPN app, with a kill-switch option (Kill Internet access if not connected to VPN). The Kill Switch ...
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0answers
87 views

Load Balancing , Auto Scaling VMs

I am figuring out on how to setup a network of load balancer and auto scaling options for n web servers( Ubuntu VMs with Apache installed) For load balancer sitting in front of n web servers, I am ...
1
vote
1answer
78 views

Vagrant VirtualBox with many CPUs

I'm running a VirtualBox VM through Vagrant and I've noticed startup time performance decrease when adding more CPUs to the machine (Vagrant would timeout). E.g. there is a big difference in startup ...
0
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1answer
53 views

ESXi create instances of the virtual machines for each user

We set-up an ESXi server at our office not long ago, it works well. The users connect to the server with vmware Workstation to use the vms, but some of the employees are complaining that they don't ...
2
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0answers
22 views

IIS 7.5 (Win7 Pro x64) AppPool stopping and features mising

i struggle with IIS 7.5. ------Settings------------- Firstly i created a setup of IIS 7.5 on Windows 7 professional, created a website, webservices, databases and so on. On the test machine ...
0
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1answer
35 views

“eth0 does not seem to be present” on RedHat despite new MAC address

I created a RedHat VM (6.5) on an Ubuntu (14.04) server. I changed the IP address to something unique in /etc/sysconfig/network-scripts/ifcfg-eth0. I changed the MAC address for eth0 /etc/udev/rules....
0
votes
1answer
156 views

Troubleshooting SmartOS VM that won't start

I'm running SmartOS 20130405T010449Z with an Ubuntu KVM inside. The Ubuntu VM ran healthily for months, then after a reboot of the physical hardware the vm no longer connects to the network on startup,...
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2answers
489 views

How to shrink size of raw virtual machine disk image (kvm)?

Let's say I have image.raw with size of 10GB. Inside is one primary etx4 partition (no LVM used), extending to the entire volume. And the data on that partition is, for example, 7GB. This image is ...
1
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2answers
612 views

Azure VM CPU utlilization metrics (no data) [closed]

I am running several VM's in Azure. Size DS14 and my cpu metrics look like this. "No Available Data" What am I missing? How can I get it to show the CPU utilization of the box?
0
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1answer
148 views

Xenserver 6.5 High Availability

I'm running xenserver 6.5 and I just configured high availability. I noticed that there is the option for start order. Is there a best practice for start order when it comes to HA? Obviously the more ...
0
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2answers
35 views

Why are my VMs displayed incorrectly under a single parent entity?

I've never seen anything like this before. I connected to a vCenter with two hosts. The first host has a single parent entity with 33 VMs. They are all stacked together and I cannot expand the entity. ...
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1answer
32 views

No “duplicate host” warning if different netmask (same gateway)

I experienced the following "strange" behaviour on a virtual machine network setup (bridged): host 1 hostname: server_one ip: 192.168.1.2 netmask: 255.255.255.0 gateway: 192....
3
votes
0answers
38 views

ASP.NET Performance Counters Temporarily Drop To Zero

Having some performance issues with a VM Image (I do not have access to the VM Host, only the guest OS). Trying to determine why there are periods of time ranging from 10-60 seconds where the server ...
1
vote
0answers
136 views

tnsping and lsnrctl hung when about to exit – Oracle 12.1.0.2.0 on virtual Windows 7 VM on Mac [closed]

I am trying to run an Oracle installation on Windows 7 running in a virtual machine (Parallels or VMware) on a MacBook Pro (Retina, 15-inch, Mid 2015). When executing Oracle utilities like tnsping ...
2
votes
1answer
699 views

What is the best way to create a reusable Azure Virtual Machine Image?

We're trying to create a template Windows 2012 R2 image for a virtual machine in Azure. Our goal is to clone it into several instances. Unfortunately, we aren't able to connect via RDP to any of the ...