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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41 views
Moving from Xen based VPS to Hyper-V based [closed]
I'm trying to decide whether I should move my VPS from a Xen based solution to a Hyper-V based one. The Hyper-V solution offered a better price. My site is built with WordPress and a couple of plugin ...
0
votes
0answers
14 views
What are the open source alternatives to ScaleMP? [duplicate]
ScaleMP allows you to virtualize multiple physical servers into one. See http://www.scalemp.com/
What are the alternatives? What are the open sources alternatives?
Is open source community doing ...
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0answers
29 views
How can I virtualize a running server but exclude directories so the resulting image is smaller than the drive
Following situation: There is a Ubuntu 10.10 Server running with many custom configurations and programs (can't set it up from scratch). One of these programs stores a lot of data (> 1TB) in ...
1
vote
1answer
46 views
Hyper-V and CPU Usage
I'm renting VPS that I believe is using Hyper-V. Lately the processor performance of my VPS has been terrible, yet the CPU usage in the task manager doesn't show it struggling. Is the CPU usage in the ...
0
votes
0answers
35 views
Choosing virtualization management [closed]
I have several dedicated servers hosted in different datacenters.
OS is CentOS and hypervisor is KVM. For this moment I'm managing virtual machines with virsh shell.
So, I'm looking for a ...
0
votes
1answer
118 views
Super lightweight headless Linux virtual machine on Windows? [closed]
I'm developing a cloud application and need to test the clustering capability. I'd really like a fast and easy way to spin up several headless Linux virtual machines on my Windows laptop. Each VM ...
0
votes
2answers
91 views
Getting “Stopped” Hyper-V VM state from PowerShell
I'm using http://pshyperv.codeplex.com/ for managing Hyper-V through PowerShell.
OS: Windows Server 2012
This PS module can get VMs which are running and, I guess, should get the ones which are in a ...
-1
votes
1answer
44 views
One virtual machine per product? [closed]
I'm working with two Windows Server 2008 servers (one for development, one for production) which host several web applications. Some of these applications run on Tomcat with an Oracle database, others ...
0
votes
1answer
68 views
Problems virtualizing SBS2003 server to KVM on Debian
I have a server with sbs2003. I would like to move it to another machine (linux Squeeze Debian), within a KVM virtual machine.
I proceeded like this:
Installed the disk2vhd.exe application on the ...
0
votes
1answer
36 views
How to setup Apache subdomain to point to a virtual machine web server
I am trying to solve a problem, with a Linux server work as host, while qemu guest will have another server intended for subdomain.
The guest server is bridged correctly with the host server. The ...
3
votes
3answers
73 views
Virtual Server Memory not a power/multiple of 2
In the old times (before virtualization), memory came in powers/multiples of 2, because that is the way memory is manufactured. Nowadays that we create virtual servers that don't have real physical ...
0
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0answers
21 views
./pox.py log.level --DEBUG forwarding.l2_learning not working as expected
I have installed openvswitch on my PC with runs Ubuntu 12.04.I also have virtual box running on my PC with 3 virtual machines (Ubuntu 12.04) running on them. are named
vm-1
vm-2
vm-3
I have ...
1
vote
0answers
100 views
Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack
I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
0
votes
1answer
27 views
Can I boot a CD-ROM on a QEMU guest with a hard drive?
If I insert a CD-ROM into my server's physical CD-ROM drive, can I boot that CD-ROM in a QEMU guest to work on that guest's hard drive? I need to use a Windows 7 repair disk.
This is a continuation ...
0
votes
1answer
39 views
How to setup qemu as a server with different subdomain on a host server?
I am trying to solve a problem, with a Linux server work as host, while qemu guest will have another server intended for subdomain.
I tried to make the host to access the guest server. And I read ...
0
votes
1answer
71 views
Cannot connect to Openstack Instance via horizon, but SSH works?
I've got an OpenStack deployment running inside a VM for testing purposes. My setup is as follows: Host Ubuntu x64 with Virtualbox -> Guest Ubuntu x64 with OpenStack -> Ubuntu X64 Server Test ...
0
votes
0answers
21 views
Understanding Xen debug.log
Running xen 3.4.2 running with 15 vm (pv+hvm) on a host with 256 Gb RAM and 96 core CPU.
But recently my host crashed on debug log its showing
translating ffff83183fcb0000 with CR3 100ae42000 and 4 ...
0
votes
0answers
45 views
Can't reproduce arp non-response issue with spoofed packets
I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
0
votes
0answers
50 views
Converting Physical machine to Hyper V VM
I'm running a Physical machine with Windows 7 Ultimate mainly as a file server with 2 hard drives with all the file content stored on D drive with C mainly for OS. This file server is accessible by ...
1
vote
1answer
74 views
Hardware Virtualization Technology Enabling Issue
I have purchased an Intel i7 3770 and an Asus P8Z77-M Pro; for some Windows Server 2012 testing.
In the BIOS I have enabled the "Intel Virtualization Technology", and have several Hyper-V based ...
0
votes
1answer
62 views
RHEV SPICE console in IE8 fails to start
I've got an issue with the fabulous Internet Explorer browser when working with Red Hat Enterprise Virtualization manager.
When in IE8, I click the "console" in RHEV administrator portal, the RHEV ...
0
votes
1answer
108 views
converting a Virtualbox to Xenserver
How can I use my virtualbox image in a Xenserver 6 or above? I mean is there a way to import the image to Xenserver? Secondly is there anyway we can import vmware image to Xenserver without using ...
0
votes
1answer
64 views
Unable to run windows 2008 R2 after Disk2VHD
I want to convert my physical domain control to hyperv, I created the VHD using Microsoft utility Disk2VHD,
The VHD was created, I attached it to HyperV and was able to login. After login the Virtual ...
0
votes
0answers
35 views
how to carp two interfaces on same node?
I have this CentOS machine with 2 interfaces.
eth0--> br0 (.10)
eth1--> br1 (.11)
Although part of the same network, each interface is being fed from a different switch. I use each bridge in ...
0
votes
0answers
24 views
Virtualbox: Port forwarding to an IP other than the hosts fails
I've got an Ubuntu server image running within virtualbox using NAT.
I've started LXC containers within that ubuntu server image and configured bridged networking so they all have an IP on the same ...
0
votes
1answer
66 views
Set startup order for KVM virtual machines via libvirt?
I have some server applications failing because their virtual machine starts up before the database virtual machines. Anyway to configure libvirt to start them up in a certain order and possible ...
2
votes
2answers
156 views
Can a virtual machine (VM) “hack” another VM running on the same physical machine? [closed]
For example:
if a VM is corrupted (hacked), what do I risk on others VMs running on the same physical machine?
What kind of security issues is there between VMs running on the same physical host?
...
1
vote
1answer
53 views
How do I sync disks in a Windows guest before doing a snapshot?
In general, before doing a disk snapshot of a virtual machine instance, the disk has to be synced to ensure that all buffers have been written to disk.
If the guest operating system is Linux, you can ...
0
votes
0answers
155 views
VNC faster than Spice for remote access to KVM guest?
Having used RDP before, I'm not exactly thrilled with the performance I am seeing from VNC to my KVM virtual machines. The KVM host is Ubuntu 12.04 server x64. I've read that Spice is faster, and ...
0
votes
1answer
62 views
Can I bridge between two different networks?
I have a VirtualBox VM which has:
eth0: 10.0.2.15/24
default-gateway: 10.0.2.2/24
Within that VM I have 2 LXC containers (i.e. two other virtual machines)
VM1 - eth0: 10.50.50.50/16 (connects to ...
0
votes
2answers
34 views
What VMware or third party tool can give a report of the capabilities of a server to virtualizate with ESXi
I mean some ESXi-check or a pre Hypervisor tool that can give details about CPU, NIC, Storage and other useful information, like VT-d passed VT-x passed and more Virtualization technology.
I know ...
3
votes
1answer
104 views
There are currently no network adapters with network optimization available
I'm setting up a 2 node Hyper-V cluster and when I try to migrate a virtual from one host to the other via VMM, I get a "There are currently no network adapters with network optimization available" ...
2
votes
1answer
44 views
Are graphic capabilities included in CPU used in common servers (web + thinclient)?
I'm trying to decide between these two Intel processors
The first of them has no graphic support in core.
I know that this type of graphic "cards" can be used to execute code from common ...
0
votes
4answers
96 views
Is it best practices to have a network card for each virtual machine on a server?
I am looking at purchasing a new server to host 3 virtual machines for a client. I have read that the virtual machine should be given its own network card. In this case, is it best practices to have 4 ...
-1
votes
1answer
35 views
How to virtualization on dedicated server with apache? [closed]
I have yet to get a straight answer from anyone, technical support from everyhost declines to tell me exactly how it works, and everyone else just says to just "make an apache virtual server" without ...
1
vote
2answers
146 views
Unable to ping VirtualBox guest with Bridged Networking
I'm running VirtualBox 4.2 on Windows Server 2003 and I am trying to ping the IP address of the guest virtual machine from the Windows host (ICMP is not being blocked).
The guest is 192.168.0.1 and ...
-1
votes
2answers
54 views
Reduce disk writes in sendmail system
I am using sendmail in a farm of ~10 servers processing 200-500 messages a minute. I have found that after moving to a virtual environment, my largest bottleneck is disk write, and specifically the ...
1
vote
1answer
56 views
Always use Xen? [closed]
I'm installing the usual bunch of servers for general office stuff, a mixture of Windows/Sharepoint and Linux
Since none of these need direct access to the hardware, fancy graphics or are really ...
0
votes
2answers
68 views
KVM Networking - Multiple LANs
I'm trying to set up some virtual servers with kvm and am struggling to work out what to do regards the network config. Currently I have 10 dedicated servers behind a firewall (asa 5505) - 2 of these ...
0
votes
3answers
90 views
Using KVM virtualization to make managing images and applications easier, not to segregate hardware
Use case: We have a couple of webservers that we're going to overload with 2 application server components in the short term.
In the long run we'll migrate the application server components off the ...
0
votes
1answer
59 views
KVM guest loses network connectivity after migration
Environment CentOS release 6.4 (Final)
(libvirt-0.10.2-18.el6.x86_64)
- (kernel 2.6.32-358.2.1.el6.x86_64)
I have been experiencing issues with KVM guest loses network connectivity after migration ...
0
votes
0answers
20 views
oracle ovm “enable vm to sniff other machine traffic/ add vnic in promiscous mode”
i need to setup snort ids in a virtual network using ORACLE OVM invironment . so the snort interface must be promiscous and enable to see all the traffic of other machines.
i have set the debian ...
2
votes
2answers
172 views
Do I need to run a NTP server in every VM?
Couldn't the guests somehow inherit the system time of the host ?
It seems kind of pointless to run the same daemon to get the same results on the same machine multiple times but I didn't find ...
1
vote
1answer
77 views
How to improve poor SQL Server performance
We have a virtualized environment using VMware vSphere 5.0 U1 which hosts our Microsoft SQL Server and have very poor performance. the host server is a HP DL360 G5 with xeon X5450's, and the disk ...
0
votes
1answer
93 views
How does Mac OS X VPS work? [closed]
How do folks like Xcloud for example provide Mac OS X VPS service? Do they run VMWare with Mac OS X guest instances, or is there a native(if that even makes sense) hypervisor that runs on something ...
0
votes
2answers
265 views
To SSD or not to SSD? (Virtualization - Xenserver) [closed]
I have several Xenserver boxes running (very well). Most of ours are setup with a RAID1 with two mechanical 7200rpm enterprise sata drives, or RAID10 with 4 7200 enterprise sata drives. The sata ...
1
vote
1answer
47 views
Allow user requesting multiple virtual machines from a pool in Ovirt/RHEV
In RHEV with a user I can request a virtual machine from a pool but if I try to get a second virtual machine, fails with this message:
User is already attached to this VM-Pool.
There is a way to ...
0
votes
1answer
99 views
KVM/libvirt host has vnet for each guest?
Totally new to KVM here, so maybe there is nothing wrong with my set up, but I am running 10 guest VMs on my Ubuntu 12.04 server via KVM and I just noticed that ifconfig returned a plethora of ...
0
votes
0answers
27 views
Network Isolation with OpenVZ [closed]
I have been researching this for over a week now.
What I am trying to do:
I am creating a cloud using OpenVZ containers. I am trying to isolate
each tenant to their own "zone". Meaning, each ...
-1
votes
2answers
81 views
converting KVM virtual machines to VMware-vsphere
I am using KVM on Ubuntu Server 12.04 and Virtual Machines are running on it in LVM. I want to migrate of them to Vmware-vsphere. How can I achieve this. Can some one suggest as where do I begin?
