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).
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Is Hyper-V a real hypervisor
According to Wikipedia, there are Hyper-V and Hyper-V server.
Ok...
Hyper-V server doesn't need an OS to run, so it is true Hypervisor.
But what about Hyper-V inside windows2008, is it a "type 2" ?
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Is the gang scheduling employed by VMware a serious drawback?
I was reading some technet articles as well as this one regarding the differences between the way VMware and hyper v doing CPU scheduling.
I was wondering if I could get some objective info on this. ...
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Can a virtual machine (VM) "hack" another VM running on the same physical machine?
Questions:
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?
Is ...
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What happens when a physical machine fails in a virtual environment? [closed]
I'm getting started with virtualization so bear with me.
In virtual environments applications run in a hypervisor's layer. So a single physical machine could have many virtual machines on it running ...
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Run virtual machines without a host
I know that I can have virtualization software (Virtual Box, Virtual PC) running on Ubuntu or Windows and run guest operating systems in it. Is it possible to run virtual machines without a host OS?
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Resize partition to maximum using parted in non-interactive mode
Since using fdisk in this case is fairly complicated due to the fact that the non-interactive usage is probably not possible or at leasr very complicated (using printf), i want to use parted ...
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VMWare ESXi: how to add network drivers to installation?
Background / Problem
I have two new servers (Dell R720 & Dell R520) that I plan to install ESXi onto.
During the VMWare Hypervisor installation, I'm told that no network adapters exist.
Upon ...
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Why use a type 2 hypervisor?
I have a question about type 1 and type 2 hypervisors. Type 1 runs on the bare metal, and then the end operating systems are installed on top. This seems to me like the most logical way to build a ...
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KVM Guest using Physical SATA disk
Is there a way to get my Ubuntu server (running as a guest in KVM) to use one of the hosts SATA disks? I Want it to have exclusive access and I believe there should be a "native" way. I have googled ...
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How do I remotely manage Hyper-V 2016 standalone via Windows 10?
How do I connect to my Hyper-V 2016 standalone via my Windows 10 laptop?
Background: I'm setting this up as a home lab. I've followed a few guides, but I have not yet found a guide/Youtube tutorial ...
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BUG CONFIRMED: No performance data for VMXNET3 in ESXi 6.0?
Did ESXi 6.0 completely removed the performance data for VMXNET3 or is there is a way, how can enable throughput logging/graphing for VMXNET3?
In ESXi 5.5 the ESXi client showed the network ...
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How is live migration of a VM possible/made?
From this article: Virtualization: What is KVM? and other resources, I learned that it is possible to migrate a Live VM from one host to another?
Live migration
KVM supports live migration, which is ...
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DRBD as DR: syncing datastores of 2 ESXI hosts, vmdk consistency?
does anyone have experience with using DRBD (protocol C) to sync parts of the datastores of 2 esxi hosts for disaster recovery of selected guests?
I have 2-3 guests that should be able to recover ...
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VMware ESXi error upon boot "Relocating modules and starting up the kernel"
Coming back from a 4-day weekend, I noticed the A/C had been turned off for the duration of the long weekend and the heat was around 80-82 degrees. The HP ProLiant DL185G5 was running but the system ...
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What are the tradeoffs between using hypervisor- vs. storage-array-based snapshots as backup sources?
Suppose you have some virtual machines (running in eg. ESXi) that are stored on an iSCSI storage array (eg. EqualLogic PS4110). Now suppose you want to set up a backup and restore regime that looks ...
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Which RAID Level Should We Run For Virtual Machine Storage
We just ordered a server which we are going to use as storage for our virtual machine environment. Basically it will work as a block level storage device running iSCSI to each hypervisor.
The server ...
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What is the Difference between T1 and T2 Hypervisors?
What is the difference between t1 and t2 hypervisors?
The Wikipedia article explains it, but I am not quite getting it. Apparently both require some sort of host system to run in. Does anybody know ...
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Hypervisors that support AIX as a guest OS?
I am trying to find out what hypervisors are out there that can support running AIX guests. I know that IBM PowerVM can do it, but I would like to explore other options.
There is also AIX WPARs (...
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Esxi hypervisor install: uefi or bios?
I recently bought Dell PowerEdge T430 server and I want to install on it ESXi 6.0. Since VMware now supports UEFI (from version 5.0) I want to ask how to install hypervisor?
BIOS
UEFI
After install, ...
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Should we use irqbalance in a VMware guest?
Should we use irqbalance in a VMware guest?
I'm very sure this benefits bare-metal installations on multi-processor systems.
I'm rather unsure if this benefits VMware guests, even VMware multi-...
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Adding RAM to a virtual machine without restart
Could anyone suggest me a hypervisor that permits adding RAM to a running virtual machine without restarting the guest OS. Is this even possible? Can this be done on xen? I have never found any ...
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Bare metal hyper-visor that supports viewing it's own guests [closed]
I'm trying to understand if it is possible to have a Type-1 Hypervisor (bare metal, no host OS) with the ability to view the guest(s) operating system(s) on the same machine.
i.e. I have a XenServer ...
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Why do I need an FQDN for a Hypervisor used only for running in house VMs for software testing?
I'm testing ProxMox, and during installation it asks for an FQDN.
I've entered test.local, and it accepted it but I suppose I would have to enter something like cluster1.companyname.com, and then ...
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How to change hostname of VM?
I am using vSphere Hypervisor 4.1.0 and vSphere Client and from the vSphere Client, if you go to the Summary tab of a VM, how do you change the Host name in the General box? I am stumped. I heard ...
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How would you (incrementally) backup KVM VMs based on LVM storage?
I'm running a set of KVM hypervisors on LVM storage (unfortunately I can't use QCOW2, because the virtualization platform I'm using is strictly LVM-based).
The virtualization platform has a very poor ...
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Can i install Xen Hypervisor on a dedicated server that is already in use
I have a dedicated server, currently i sell shared hosting on this server...
Now i want to sell VPS also on my server. Is there a way i can sell VPS?
Can i use Xen Hypervisor,will it disturb my shared ...
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How to assign dedicated vCPUs to specific VM on Proxmox (KVM) or what system could do that?
I'm posting this here, because what I've found about the topic is either outdated, incomplete or not suitable for various reasons.
I have wanted for a long time to learn how to map specific vCPUs to ...
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Distributing entropy to virtual machines
I'm interested in generating secret keys for SSL on virtual machines using true randomness. By true randomness I mean the same level of entropy that can be generated by UNIX's dev/random and entropy ...
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Does Intel VT-x (or AMD Pacifica/AMD V) Support Real Virtualisation?
I am still confused regarding the mechanisms of virtualisation.
I understand why the x86 architecture is/was not by itself virtualisable and why other architectures are (and why the 68k architecture ...
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Why is it possible to deploy a hypervisor within a hypervisor?
Why is that a hypervisor, which alledgedly needs to be on physical hardware, can be deployed within a VM?
For example, XenServer (the actual hypervisor) can be deployed in an ESX VM?
Why is this ...
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Installing Hyper-V Role on Server 2012 R2 Without the Hypervisor
I have a Windows 2012 R2 Essentials Server running on top of Hyper-V Server 2012 R2.
In server manager on the Essentials Server, I'd like to be able to manage other Hyper-V servers remotely. I'm ...
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Which hypervisors use full/para virtualization? [closed]
So I kind of understand what the difference is between full virtualization and para virtualization.
With full virtualization, the guest OS doesn't know that it is being virtualized.
With para ...
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Hypervisor for mixed client and server OSes [closed]
I need to replace three old boxes I use for development, running Linux, Win Server and Win XP. Instead of purchasing three new boxes I am thinking of purchasing a single box and virtualizing the OSes. ...
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Hyper-V Cluster 2019 suggestion for requirements [closed]
We are planning to purchase nodes for the Hyper-V Cluster which will run on Windows Server 2019.
Which chipset you recommend for cluster 2019?
What is your recommendation for PCIe Cards?
Should all ...
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Hypervisor type of Hyper-V on Windows 10 vs Hyper-V on Windows Server
Hyper-V on Windows 10 differs from Hyper-V on Windows Server in features and memory management, as stated in Microsoft docs for Hyper-V:
There are some features that work differently in Hyper-V on ...
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Troubles with booting xen VM in Hyper-V
I have raw image with xen hypervisor powered Virtual Machine (ubuntu 12)
I converted it to vhdx (Hyper-V) format and now trying to boot it:
Grub says
error 13 invalid or unsupported executable ...
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Hyper-V core management options
I have installed Hyper-V standalone on a server and configured server options using sconfig.cmd. I am now stuck as to how I create VMs, back them up etc.
Our environment has only XP pro workstations, ...
gary
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How many cores can each VM have with free ESXi?
I am a bit confused about VMware's licensing with vSphere Hypervisor (the free one). I have a server with 2 X5650 Intel processors which have 6 cores each and 12 threads. What would be the maximum ...
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KVM - Import CentOS 7 from XenServer
I imported a virtual machine (CentOS) from XenServer to KVM. This virtual machine originally had two disks (LVM). I added both disks to the imported machine in KVM. The disk containing the boot ...
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Simple Hypervisor for one OS from boot [closed]
I would like to run a hypervisor that will let me install a VM on it where the end result would be such as that when these workstations will be turned on the following will happen:
Hypervisor boots
...
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VMware ESXi boots to black screen with only one text line: "usb"
After rebooting my server (Lenovo System X), my ESXi instance starts to boot and then hangs up after the Yellow/Grey screen. I have a black screen, with a white "usb" on top.
I found similar issue ...
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Moving system from ESXi to Hyper-V
I have a problem with moving a system from ESXi to Hyper-V.
The system on ESXi has got 100GB allocated space on HDD. The system is made from an image file(size about 6GB). The machine hosting Hyper-...
user166298
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Hyper-v Core backup so slow across LAN
Our T610 server has 2 Gb NICs and a guest VHD thats 28GB in size. When I copied that VHD from our file server [Server 2003] to the local drive on hyper_v core it took over 3 hours.
This concerns me ...
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Which Hyperviser Solution for Java Applications?
Do you have any comment which of the available hypervisor solutions is best suited for Java applications? i.e. provides higher performance along with Java virtual machine?
Our machines are mid-level ...
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Hyper-V vs KVM for running Ubuntu + Windows
I am currently planning to set up a server for virtualisation. It will be running about half Windows 2012 servers and half Ubuntu. Would it be better to use hyper-v or KVM as the hypervisor as I am ...
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64 bit HVM guest freezes while booting on Debian Lenny 64 bit Xen hypervisor
I'm trying to create an x86 64 bit guest machine on an old Debian Lenny x86 64 bit hypervisor using HVM. The physical CPU is a first generation Intel i7 with VT-x support. Xen recognizes the VT-x ...
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Hyper-V processors
I'm running a HP ProLiant DL380G6 with 2x Intel® Xeon® E5520 Quad Core Processor 2.26 GHz and 12GB of ram. I got Hyper-V installed and 3 VMs for now. If I open up task manager I can see 16 cores (I'm ...
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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-...
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vSphere - Allocate 100% CPU to 1 VM / 88% efficiency [closed]
EDIT 2: My application benefits from hyper-threading
A. Yes I know what the technology is and what it does
B. Yes I know the difference between a physical core and a logical one
C. Yes turning HT ...
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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