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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XEN configuration on dedicated server at 1&1

I am just trying to install first time VPS on my dedicated server from 1&1 (12HT CPU, 30 GB RAM). The dom0 is using DHCP to get it's network configuration with ip 87.106.73.113 on eth0. I have ...
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2answers
1k views

SmartOS Virtualization with one public IP address

Is it possible? (title of this question) Googling Virtualization with one public IP address yields nothing useful What I have: SmartOS on a dedicated server. Dedicated server has one public IP ...
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2answers
196 views

“Insufficient Resources” general system error when starting ESXi VM through Vsphere client

I'm trying to set up a CentOS installation on my ESXi host using VMware VSphere client, and despite my efforts, I continually receive an error. After creating the VM and attempting to start it for the ...
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2answers
120 views

Migrate 2-drive RAID1 Hyper-V host (4 VMs) to 4-drive RAID6

I have a Hyper-V server w/ 2x500GB drives on RAID1. I would like to replace these with 4x1TB drives on RAID6. I have four VMs on one host, and can get by with just restoring the VMs on a new host ...
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1answer
97 views

Use Windows Server 2012 Standard Edition as Virtualisation Host

Would it be reasonable to run the Standard Server 2012 Edition (as opposed to Hyper-V edition) as a virtualisation host? Obviously there is a performance penalty but I guess it's not that bad - are ...
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2answers
233 views

Setting Up Xen and Network Bridge on Debian 7

Setting up Xen and Network Bridges on Debian 7 Hi there. So i am finally going to try out some virtualisation on my new dedicated machine, however i am having some problems / confusion on setting it ...
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0answers
98 views

Recompose a VMware vSphere machine without personal application data loss?

Our organization has converted a large percentage of our employees to VDI. Our logic is that we create a master image for each linked-clone pool, dedicate each linked-clone pool to specific purposes ...
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2answers
107 views

libvirt (KVM) inventory application?

I've got a bunch of LibVirt-managed (locally using virsh) KVM VMs on standalone Linux hosts (local KVM, local storage). Is there any web-based application out there that will track the inventory - ...
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2answers
861 views

XenServer Shared Local Stage

I am new user of XenServer 6.2. I have multiple servers connected to Pool/Cluster. Each server has 4 HDD with sw raid10. I would like to make local storage shared because of need quick migration. ...
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2answers
186 views

Microsoft licensing in a virtualized environment questions [duplicate]

I plan on deploying two physical servers which will run VMware ESXi and have a number of questions regarding Microsoft licensing. To note, all the VMs on the servers will be configured to run in ...
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0answers
76 views

opensm reports - Invalid requested MGID. What does it mean?

I've been working on a virtualized SR-IOV infiniband interface under Xen. If I run the OpenSM daemon under Dom0 IPoIB appears to work in the passed through VF. However, opensm starts using a lot of ...
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1answer
453 views

How to get virtualized SR-IOV Infiniband interface UP?

I've spent several days on this now and I've managed to get SR-IOV working with the Mellanox Infiniband card using the latest firmware. The Virtual Functions appear in Dom0 as 06:00.1 Network ...
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2answers
67 views

How to import an XEN disk.raw VM into OracleVM

I have two virtual machines running on an OpenSuse 12.3 Linux with XEN. These VMs has disk.raw files with Linux running inside them. I'm trying to use Oracle VM and want to get the two XEN disk.raw ...
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1answer
77 views

User-specific alias for virtual machine

Our systems people are working on getting us all up and running on virtual machines. There will be a certain set of machines for each performance level, and we'll be able to upgrade and downgrade as ...
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0answers
59 views

Hyper-v takes a long time to create snapshots

I'm not sure when, but I've noticed as of recently, whenever I go to make a snapshot of certain machines, it hangs at 2% for a good while and then eventually finishes (fairly quickly, actually). I ...
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1answer
110 views

Setting an IP on a virtualized Windows 2003 server without activation

The first time (no joke) after virtualizing an old Windows Server 2003 machine (as part of a consolidation effort), it is trying to force me to activate. Normally, it was letting me get in with a ...
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2answers
124 views

Virtualize XP machines on demand [closed]

Here's my situation: My company uses an application that only works with XP, needs to be able to access network printers, and exports information in Excel. We need to move off XP before support runs ...
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0answers
65 views

How to detect on Linux that given MAC (HWaddr) is a virtual MAC and will change after rebooting?

Is it possible on Linux to detect automatically that given MAC (HWaddr in ifconfig output) is a virtual MAC and will change after rebooting. or alternatively is there a way to detect virtual network ...
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2answers
692 views

Is it possible to run nested VMs with in VMWare Workstation without Intel VT-x?

I need to fiddle with ESXi inside a VMware workstation 9 Virtual machine but my old Intel Core 2 Duo T6400 does not have Intel VT-x hardware assist technology! Is there any mean to run a bare-metal ...
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1answer
908 views

Proxmox: VMs and different public IPs

I have a server which has two NICs and both are directly connected to internet. I have five different public IP addresses available for the VMs. The host machine (Proxmox) doesn't need to use any ...
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1answer
530 views

tap interfaces always disabled in linux bridge

I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this purpose I do: #Create the virtual interfaces tunctl -t tap0 tunctl -t tap1 ifconfig ...
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0answers
481 views

XenServer giving bridge access to guest using Private Network

I have two networks configured in XenServer 6.2: Production - Private Network Management - Private Network For each guest, I have two NIC's, one per network. None of the guests should have ...
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2answers
144 views

ESX, migrate hosts hardware to new hardware best practices

I have an ESX farm running the same 4 physical hosts (identical hardware) on vCenter 5.1. I received a bunch of 4 new physical servers with a newer hardware and I have to replace the old ones by ...
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1answer
733 views

Connecting to other instances of Hyper-V Manager in domain

I have a test environment that I host from my computer. I have configured an external switch so that it can be accessed by others. Windows 8 Enterprise and Hyper-V Manager Version: 6.2.9200.16384 If ...
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0answers
81 views

Guest machine can't access internet

I've installed kvm, libvirt and virt-manager suite to configure and install virtuals machines. All work fine (virtual machine managing, vnc) but my virtual machine can't access internet. Virtual ...
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1answer
379 views

IPMI drivers missing

I am trying to monitor and manage some servers using OpenIPMI in Ubuntu, and for some reason, when I start the OpenIPMI service, it says: Starting ipmi drivers [fail] ...
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1answer
26 views

Lab 2012 Hyper-v migration from esxi

I need some clarity on the hyper-v virtualization strategy coming from ESXi 4.x. Purpose: A VM for Sql Server 2012 w/ SP1 A VM for Sql Server 2014 CPT1 Hardware: Poweredge T100 8GB RAM, 2 SSDs ...
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1answer
3k views

How to change boot device on vm installed on Citrix Xen Server to DVD

I have installed Centos 6 on my new Xen Server (XenServer release 6.2.0-70446c). Everything went smooth. System is working fine but now I want to change boot device on that VM to boot from DVD (iso ...
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1answer
663 views

Adding virtual NIC to HyperV VMs killed my network speed

I have a pretty simple configuration: Windows Server 2012 Hyper V Host, with two VMs (both Server 2012), one for IIS, one for SQL Server. They're all connecting through the physical NIC Last night I ...
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1answer
1k views

Is OpenStack live migration possible without shared storage?

Like many people I am considering creating 'private cloud' using either OpenStack or VMware. VMware vMotion has a nice feature which allows Live Migration of VMs even without shared storage. I have ...
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votes
1answer
230 views

Import virtualBox appliance to KVM

Im new using KVM as a virtualization solution. Currently I'm using VirtualBox to manage my virtual machines in my personal computer, but I'm moving my virtualization to a Server, so I set up a Linux ...
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2answers
51 views

Automatic VM disk resize

I got a KVM/Qemu setup that works great. Now I want to streamline the provisioning of new VMs. The two obvious ways are to either clone an existing disk or install from scratch (with an automated ...
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1answer
200 views

Clone/Backup Strategy for VMs between ESXi and KVM requiring clones to run concurrently with original VMs

I am stuck on this problem and need help. ESXi Free version 5 and qemu-kvm/libvirtd version 0.10. I will put the TL;DR first since it captures the problem fairly well. TL;DR I have 2 VMs on a KVM ...
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1answer
71 views

Keep guest time after shutdown using KVM/libvirt

I use KVM/libvirt based virtualization. Some of vm guests have set date far in future (2-3 years, different month, day, etc) After each guest shutdown down, the date is being set to host date ...
2
votes
2answers
134 views

Why would you use Xen as opposed to OpenVZ for trusted Linux-only host/guests? [closed]

Every time I need to create VPSs out of one of our machines, I (re)think the virtualization technologies, and seem to end up with OpenVZ being the most suitable for performance reasons when all I want ...
0
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1answer
83 views

Finding out the location order of tap interfaces in KVM VM (Libvirt)

I have inserted 8 tap interfaces in a Cisco Libvirt xml file that will create a guestmachine running Ciscio iOs image: <interface type="ethernet"> <start mode="onboot" /> <target ...
2
votes
2answers
532 views

Can I run a KVM guest with a btrfs subvolume as file system?

I want to run a virtualized Debian stable KVM guest on a Debian stable host (to run untrusted stuff like Skype, Flash or eclipse with third-party plugins). Naturally host and guest will have many ...
0
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1answer
105 views

Managing disks for File Server on Hyper-V VM

I want to set up a File Server role on a Hyper-V VM on a Windows 2012 Server host. What would be the best way to set up the system in terms of handling the underlying storage disk? The scenario's I ...
2
votes
1answer
156 views

Best practices on VM disk management

I'm replacing two old rack servers with a new one that has plenty of power to take over the functionality the current servers. The server is a 4U rack mount with 16 3.5" SAS drive bays, two 2.5" bays, ...
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1answer
78 views

How does datastore layout effect disk IO in a virtual environment? [closed]

Having been working with virutal infrastructure, recently i have been facing some disk issues. I am aware that my disks are not fast disk so i have made move to upgrade to fast disk, secondly, vms ...
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0answers
127 views

Qemu virtio-net extra networking interface

I have a qemu debian guest that is being launched with the following command. qemu-system-x86_64 -boot order=c -drive file=image.img,if=virtio -enable-kvm -netdev ...
0
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1answer
459 views

Qcow2 converted to vmdk show as spare and can't be snapshot

As the title says, kvm disks that I converted and moved to ESXi are useless because I cannot use snapshots due to the fact that they are sparse disks. Does anyone have a resolution for this issue? ...
0
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1answer
757 views

VT enabled in BIOS but KVM failed to detect

I Have Dell OPTIPLEX 755 machine with VT enabled in BIOS but when i trying to check using KVM i am getting following error I am missing something? root@nova-controller:~# kvm-ok INFO: /dev/kvm does ...
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1answer
66 views

Consequences of exposing VM storage on same subnet as VM's and hypervisor

I recently purchased a RAID array to store my VM's and segregate the storage from the host machine. Since my needs are pretty simple I've configured the VM's to bridge with the host network (I think ...
0
votes
2answers
59 views

Manage virtual machines of different virtualization engines uniformly [closed]

I have several VMs hosted by VMware and several VMs hosted by HyperV. I'm wondering if there is any application/library/API that allows to treat these VMs in a uniform way not depending on ...
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1answer
27 views

Ubuntu Subdomains on the Fly

We're a trying to accomplish the following on a Ubuntu Server 13.04 installation. We host SaaS apps for customers are are currently moving off shared hosting environments due to limitations with ...
2
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1answer
37 views

Saving the State of an Application using App-V or some other type of Virtualization Technology

I have an application that I would like to be able to create "snapshots" of (sort of like you might do with a virtual machine). Basically I would like to be able to allow the user to do a bunch of ...
5
votes
4answers
904 views

What are the performance implications of running VMs on a ZFS host?

I'm considering migrating from ext3 to ZFS for data storage on my Debian Linux host, using ZFS on Linux. One killer feature of ZFS that I really want is its data integrity guarantees. The ability to ...
0
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1answer
25 views

Is there a way to make an image of a single volume at a point in time?

I have a Windows Server 2008 R2 box that I need to be able to re-image at any given point. With VMWare, is it possibly to create a snapshot or image of only a specific drive at a point in time? Also, ...
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votes
3answers
48 views

VM Connected to a Domain

I'm working with an automated tool that deploys VMs to center. It is setup within the customspec to be connected to a domain [windows]. After the VM is clone, we get a success state from VMWare that ...