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Questions tagged [hypervisor]

This is one of many hardware virtualization techniques that allows multiple "guest" operating systems to run concurrently on a "host" computer. Also known as virtual machine manager (VMM).

Hypervisor, also called virtual machine manager (VMM), is one of many hardware virtualization techniques allowing multiple operating systems, termed guests, to run concurrently on a host computer. It is so named because it is conceptually one level higher than a supervisory program. The hypervisor presents to the guest operating systems a virtual operating platform and manages the execution of the guest operating systems. Multiple instances of a variety of operating systems may share the virtualized hardware resources. Hypervisors are very commonly installed on server hardware, with the function of running guest operating systems, that themselves act as servers.

Source: wikipedia

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Huge packet loss Hyper-V when guest is running with R410 and Broadcom BCM5716C NetXtreme II

I am running a domain controller, that also has a Hyper-V role installed. Within the Hyper-V, I have a legacy Windows 2008 SBS that we will eventually retire. When the guest OS is shutdown network traffic is normal. When the guest OS is running,…
morleyc
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What are the contraindications for using Hyper-V with Windows 2012 Server?

Background: I am researching several Virtual Machine Manager solutions. They are being considered for use in separating configuration for multiple development and testing environments. The decision has already been made to use Windows Server 2012…
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How to make all of my IPs works in HyperVM XEN?

I've installed HyperVM on CentOS 5.8 final to make XEN VPS. I have 5 IPs, and added them to an IPPool. They are from *.123 to *.126. But when I add Virtual machines, just the first one (which indicate to *.123 ip) works well. I mean I can ssh to it…
user758667
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Web client in vSphere hypervisor (free ESXi) 5.0.0 missing

Just installed the hypervisor and it is up and running fine (in Test mode). Using the corresponding version of vSphere Client works fine too. Now sites like this show a Web Client that I just cannot see. When I visit https://my-esxi5/, the vSphere…
Paul
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How to run a hypervisor-type-app in non-headless mode?

I'd like to figure out how to do the following: Run, as a root system\OS, something like Proxmox where a light-weight OS (Linux) is booted and a VM server resides within. (Proxmox claims that the VMs only exhibit a 1-3% "hit" as compared to running…
Josh M.
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Checklist for relocating Linux server

I've been preparing a new Linux server in the office to be used as a VM host using Proxmox. Now that the basics are done we're moving it to our ISPs server room. I'd like to make sure I haven't forgotten anything before we move the server. Here are…
onik
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Build parallel processing grid from 32-bit desktops

I am running simulation on my laptop(Core 2 Duo 1.8Ghz with 4GB RAM running windows 7) which is taking very long time. I have a couple of unused 32-bit (Core 2 Duo 1.8Ghz with 4GB RAM) desktops. I would like to connect them(as slaves) in a grid…
8A52
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What's the best way to make a copy of a VM and then rename it to save into your inventory from vSphere client?

I've had trouble exporting VMs, renaming them and importing them back into my inventory. What is the best way to do this inside vSphere Client? I am using vSphere Hypervisor version 4.1. Thanks.
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Hyper-V IO performance penalty for non-enlightened guests?

Does anyone have any numbers or good resources on the disk IO performance penalty for a non-enlightened guest(Windows XP) vs enlightened guest (Windows 7) running in a hypervisor? Hyper-V in particular, but VMWare ESX numbers would also be useful. I…
Joshua McKinnon
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How to investigate frequent but dissimilar data-loss events

I have a Xen domU provided by a third party, running Ubuntu (10.04, server edition, stock -server kernel). This server runs Dovecot and Exim4, with mail stored in Maildirs, and runs a fairly typical LAMP stack with most applications in Perl, and all…
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What are some arguments against using virtualization in favor of multiple servers?

I am settings up windows server 2008 environment. I have 4 new servers with 12 GB RAM each. I am looking to distribute the following roles: 1) Domain Controller / Active Directory 2) Exchange (E-mail) 3) File / Print 4) SQL Server I am leaning…
SLY
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Whats the difference between "bare-metal" hypervisor and full virtualization?

I am presenting to my class on virtualization. While researching, I am confused between a bare metal hypervisor an full virtualization mode with binary translation. Could someone please explain that ?
Hrishikesh Choudhari
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HP ML350G6 running hyper-V 2008 r2 resets itself every 2 hours

The system started resetting itself exactly every 2 hours. These are the messages in the iLO2 log: Informational iLO 2 03/07/2010 20:40 03/07/2010 20:40 1 Server power restored. Caution iLO 2 03/07/2010 20:40 03/07/2010 20:40 1 Server reset. It's…
GT
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Limit number of CPU cores in bare metal server

I was trying to benchmark application performance across bare metal and hypervisors. I have a 24-core server on which hyper-v is running. On the same machine, I have centos7 installed. I can set the number of cores a VM can get from hyper-v console,…
helloworld
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Co-locate VM on a single/set of core(s)

I'm trying to understand certain impacts of virtualisation on performance by running benchmarks on VMs. I'm considering ESXi and Hyper-V as the hypervisors. I wanted to know if I can pin a VM to a particular core or set of cores. If possible, I…
helloworld
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