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 ...

learn more… | top users | synonyms (2)

5
votes
1answer
886 views

WARNING KVM acceleration not available, using 'qemu'

Running debian (Linux Rick 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u6 (2015-11-09) x86_64 GNU/Linux) Looking at my cpuinfo I can see I have vmx support: flags: fpu vme de pse tsc msr pae mce ...
0
votes
0answers
17 views

Database on Virtual Machine getting corrupt

Primary Domain Controller - Windows Server 2008 R2 Standard (installed on Physical Server) Secondary Domain Controller - Windows Server 2008 R2 Standard (installed on Virtual Machine i.e Vmware EXSi ...
-2
votes
1answer
76 views

Can I run VirtualBox with Bridged adapters on EC2 and GCE

I have a Ubuntu 14.04 host on GCE and I want to run a VirtualBox VM on it. The guest is also running Ubuntu 14.04. I want the VM to be visible to other machines in my VPC and bridged adapter seems to ...
0
votes
1answer
52 views

Re-add Machine to domain without Renaming it? Cloned Virtual Machine issue

So I have some old XP machines that are being kept around to run an ancient DOS based database we still need occasional access to. I decided to instead of dealing with all these old buggy machines to ...
0
votes
0answers
8 views

configure burst ram for openvz container

Can somebody help me out as to how can we set the burst ram for OpenVZ container using proxmox API. I tried using the following command but with no success: pvesh set /nodes/pve/openvz/{vmid}/config/ ...
2
votes
2answers
388 views

Any known fixes for Hyper-V host networking randomly stops responding?

We run several HP DL380 Gen8 servers as Windows 2012 R2 Hyper-V hosts. Randomly, they stop responding on the customer NIC (ie the one connected to the virtual switch). Customers are disconnected from ...
2
votes
2answers
86 views

How to require all network activity to pass a KVM guest firewall before reaching the host?

Most of the information I've come across tends to set up a KVM firewall using a bridge connection. From my understanding it is a security risk if network traffic can reach the host without having to ...
1
vote
1answer
56 views

pfSense security: is the host of a virtual pfSense firewall accessible via ssh when the network interface has been assigned to pfSense?

Can the host of a virtual pfSense machine be accessed (via ssh) when the WAN interface is assigned to pfSense? Would the drivers need to be installed on the host, guest or both? Would it respond to ...
0
votes
0answers
32 views

Cant set extra option to VPS in proxmox 3.4

I am using Proxmox VE 3.4 to create an openvz container...i was able to create a vz container but i want to know are the advanced option like VNC, ppp, tun tap feature available in proxmox VE on any ...
1
vote
1answer
24 views

Distribute application as virtual machine but require external storage

I'd like to distribute a Web application as a VM image in order to make distribution, installation and maintenance as easy as possible for customers (virtual appliance). This image should include ...
0
votes
1answer
35 views

Confused about virtual network interfaces needed for network

I am relatively new to networking and have researched a lot about the topic however I am still confused as to what kind of virtual set-up I need. I have linked a diagram of the network over here: ...
0
votes
0answers
60 views

VMware Horizon View 6 Connections Fail w/ Changing Server Names

One of our Horizon View machines has intermittent issues connecting to its host via PCoIP. I do not have extensive Horizon View experience, but when looking through connection logs, I noticed that ...
3
votes
2answers
164 views

Should I split up an application in multiple, linked, Docker containers or combine them into one?

Background I'm currently working on building an application which I want to deploy to Docker containers. The containers will run on a server of mine. I want to have the ability to run other ...
0
votes
1answer
102 views

Is it a bad idea to virtualize DC, DNS and DHCP?

I'm planning to set up a small environment with a Domain Controller, DNS and DHCP using Windows Server. My question is in other words not for a huge world-spanning enterprise network solution (and I ...
0
votes
1answer
204 views

Do any hypervisors support vTPM?

I am trying to use vtpm to provide remote attestation for VMs, but I do not know what hypervisors support vtpm. Does anyone know?
2
votes
2answers
146 views

Is Server Clustering Right for a 25 Person Business?

Company owner wants high availability as even a 1 hour downtime kills billable revenue for 20 accountants. I've got a one year old Dell PE T110-II running 2012 Standard and an ancient PE 840 running ...
4
votes
4answers
245 views

Which VM needs more resources?

I have a physical server which runs 8 virtual machines with virt-manager and kvm. Since one VM is not needed any more, I want to give the remaining virtual machines more resources. I'm looking for ...
0
votes
0answers
36 views

How to alias default gateway IP address

The problem is the following: I have got two dedicated servers at OVH. I have got few virtual servers (KVM+libvirt) and I want to migrate them between two hosts. I already managed to make live ...
0
votes
0answers
75 views

Proxmox safely remove node from cluster without deleting vms

I have 2 nodes, each of them on a separate device. I joined the second node to the cluster to migrate a copy of one of the VM's to it. Now I can't login to the web manager of it, just can login to ...
0
votes
1answer
85 views

Setting up network connectivity between 2 VirtualBox Windows VMs

I am attempting to set up a set of VMs on Virtualbox and have configured one as a DC running Windows Server 2008 R2, and it's intended to function as a primary DNS server. I have created a reverse ...
-3
votes
1answer
70 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 ...
0
votes
0answers
11 views

Get direct block addresses - Sleuth kit - XEN

I am using sleuth kit library in order to write an introspection tool for XEN hypervisor and my question is if we have the inode number of a file on a disk [ guest VM - ext4 filesystem], for example ...
1
vote
1answer
83 views

Options for optimising QEMU emulation (-cpu flag)

I have been doing some reading about optimising QEMU and one thing that I am confused about is the -cpu switch. At the moment I am using -cpu host which is supposed to transfer all the hosts cpu ...
0
votes
1answer
36 views

Volumegroup using entire disks instead of partition - Extending online Vmware

Is it possible when using entire disk for volume groups to extend the assigned disks space from the vmware console, and then online the volume group after rescanning host to know the new size, or to ...
0
votes
1answer
66 views

2 Node Failover Cluster

I need to build a 2 node Hyper-V failover cluster, that's dead simple right? The problem is that the hardware is already bought. Both servers are identical and approved. Related spec: 250GB Drive ...
1
vote
1answer
125 views

Hyper-V host memory requirements. Possible over allocation to guest VMs?

System: PowerEdge R430 Intel Xeon E5-2440 (dual) 32GB RAM Hyper-V 2012 R2 VMs: DC - 8GB RAM APP - 19GB RAM The VM's are not configured for dynamic memory. The client was complaining about ...
1
vote
0answers
44 views

Efficiently managing multiple Windows 7 VMs

I will be running several (at least 10, probably more) Windows 7 virtual machines on a Linux server and I am looking for a way to manage this efficiently. All the machines will be identical except for ...
2
votes
0answers
18 views

Transparently farm processes out to cluster

Situation: At work, we have an in-house tool for data crunching. When a job is triggered, it starts multiple copies of itself in separate processes and communicates with them in order to crunch in ...
2
votes
1answer
157 views

Missing memory on ESXI 6.0

I have an ESXI 6.0 with 8GB Ram. For some reason I can only use 4.7GB for VMs. I tried using esxtop but didnt see anything using lots of RAM. Below are screenshots from vsphere. Can anyone help me to ...
2
votes
1answer
79 views

Thought about using my server hardware effectively

I will receive my new server hardware in some days, and of course I am already planning on how to use it the most effective way. My current thoughts are about scaling the web and database server on a ...
0
votes
0answers
26 views

Virtualizing physical Windows Server 2003 R2

I have a HDD that seves as dead data archive. I want to virtualize the HDD in XenServer in atempt of evade some problems (like losing the HDD itself). I tried the VMconverter from VMware (to futher ...
1
vote
2answers
92 views

Using hpasmcli, how do I find two specific BIOS settings?

Using hpasmcli in Ubuntu on an HP ProLiant Generation 9 server, how do I find this BIOS setting? Boot to BIOS -> System Options -> Virtualization Options is either enabled or disabled I cannot ...
1
vote
0answers
43 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 ...
2
votes
0answers
67 views

Best practice for configureing vmware dv uplink port groups?

I'm creating a distributed virtual switch - each host has 2 physical NIC's each of which will map to an uplink port. I want to create uplink port groups so i can set up NIC teaming, I wanted to know ...
2
votes
1answer
82 views

Virtualized X Server on Host Machine

So, I'm trying to tackle a rather odd issue. I'm fairly new with virtualization (the most I've managed is isolating some applications with Docker and VirtualBox, which isn't hard to do). I am more ...
1
vote
0answers
16 views

How can I tell which customization specification has been applied to a deployed VMware VM?

I have inherited a load of virtual machines deployed from templates in VMware. Is there a way that I can tell which customization specification was applied to them during the process?
0
votes
1answer
164 views

How to create bridged network interface for Xen?

I'm trying to use Xen on an Ubuntu server for the first time and have a really basic question. I'm following the guide in the Ubuntu docs and under the Network Configuration->Using bridge-utils ...
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 ...
0
votes
1answer
57 views

Persist OVS mirroring on Xen reboot

I'm running Xen on Debian with five guest VM:s. I've used the following command to setup port mirroring to two of the VM:s ovs-vsctl \ -- --id=@m1 create mirror name=detector \ -- add bridge ...
0
votes
1answer
107 views

How do you create a qcow2 file that is small yet commodious on a Linux server?

I believe that there are qcow2 files that displace a small amount of gigabytes on a server (as verified with a df -h on the physical server) yet allow for lots of space when you log into the ...
0
votes
1answer
54 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
votes
2answers
38 views

System configuration for virtualized environment hosting many VMs

As a company we are going for a new server that will run hypervisor and host another 3 VMs - Two business systems + VM with Sql Server only (Equivalent of AWS RDS) Operating systems of each VM and ...
2
votes
2answers
128 views

ganeti-metad bind address based on cluster configuration

On my machine (debian jessie) ganeti-metad listens on all interfaces: # netstat -lepn | grep metad tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 0 66528 ...
0
votes
1answer
62 views

How to tell if VM in KVM is using VT-x

I have a machine running under KVM which is not performing very well. I have been trying to google a way to determine if a VM is using VT-x. I can find plenty of links on how to determine if your ...
1
vote
1answer
76 views

Libvirt with Xen fails to start correctly Ubuntu 14.04

At the moment i'M really feeling a little helpless: I tried to setup Ubuntu 14.04 with Xen and libvirt for management. I created a VM but I did not auto-start (altough autostart is checked). If I do ...
0
votes
2answers
557 views

What is the correct way to activate a Server 2012 Guest in Hyper-V (NOT R2) with a server 2012 host using virtualization rights?

I've done quiet a bit of searching on this and can't seem to find an answer, everything seems to refer to R2 and AVMA or just simply states you are allowed 2 visualization rights and nothing else. ...
1
vote
1answer
69 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
votes
1answer
49 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 ...
0
votes
2answers
672 views

xenserver - xe-toolstack restart - i lost connection from xencenter

After Xencenter-toolstack restart i lost connection from xencenter I try to restart using ssh - putty following message is showing and i lost the browser access also ............ All xe ...
4
votes
0answers
55 views

How can I provide services to an internal air-gapped extranet

Background - "Extranet" We have about a dozen users that are on what I would call an Extranet. It is an air-gapped LAN that is physically in the same location as our primary LAN. We share the ...