Reproduced:http://blog.csdn.net/chdhust/article/details/7557791VM VMs are based on Linux kernel virtualization and have been integrated into major releases of Linux since linux2.6.20. It is managed using Linux's own scheduler, so its core source code is few compared to Xen. KVM Virtualization requires hardware support (such as Intel VT Technology or AMD V technology) and is hardware-based full virtualization. The early days of Xen were software-based
Run OS X Mavericks on QEMU and KVM
Today, OS x virtualization is easy to handle, because OS X hosts fully support VMware and VirtualBox. But what will virtualization happen on bare metal and QEMU? What about Linux? In the end, I completed Mavericks on QEMU (no extra kernel expansion (!)), But it is really not easy.
Ubuntu 12.04 cannot find the Qemu command
Install QEMU + efi bios on Arch Linux
QEMU translat
Description1) The VMware ESXi virtualization platform also supports this online extended disk feature.2) The KVM virtual machine also supports the online extended disk function, which is extended to a specific usage environment, primarily for production environments that cannot be deactivated.3) Tested KVM Online Extended disk function only for rhel/centos/oel6.x
Kvm Basic Principle 2The idea of KVM is to add a virtual machine management module on the basis of Linux, and reuse the completed process scheduling, memory management, IO management, and other parts in the Linux kernel, therefore, KVM is not a complete simulator, but a kernel plug-in that provides virtualization functions. The specific simulator work is complete
= 255.255.255.0
GATEWAY = 192.168.100.1
DNS1 = 8.8.8.8
USERCTL = no
Problem:
The mac address of the source machine is also copied from the VM cloned by kvm. when the clone machine is started, the NIC cannot be activated. the following message is displayed:
Device eth0 does not seem to be present, delaying initialization
Cause: because the mac address is repeated, the clone machine renamed eth0 to eth1.
Solution:
1. list recognized current NICS
# Ls
I installed it on a VMware virtual machineFirst, check whether the CPU supports virtual tablesgrep ' VMX|SVM '/proc/cpuinfo--color//have supportSecond, install KVM and the required packages and verifyYum-y Install KVM virt-* libvirt//Check if the installation was successfulLsmod|grep KVMLs/dev/kvmThird, network configurationCat/etc/sysconfig/network-scripts/ifcfg
-manager management requires listen= ' 127.0.0.1 '), no passwordTo
#固定vnc管理端口5904, do not automatically assign, VNC password Xiaobai, monitor all networks
Remote VNC access Address: 192.168.32.40:5904
Iii. Storage pools and storage volume management
1. Create a KVM host storage pool
1). Create a storage pool based on a folder (directory)
Virsh pool-define-as vmware_pool--type dir--target/virhost/vmware
Because of the management problems in our alization are caused by the annoyingly popular desirable host Migration Feature! I previusly talked about PCI device addressing problems, but this time the topic to consider is that of CPU models. every hypervisor has its own policies for what a guest will see for its CPUs by default, xen just passes through the host CPU, with qemu/KVM the guest sees a generic model called "qemu32" or "qemu64 ″.
features many functions.VMDK is a virtual disk format for VMware, which means that VMware virtual machines can run directly on KVM.The next section describes the Storage Pool for LVM types.650) this.width=650; "title=" "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160313-1457875040598057697.jpg "style=" Border:0px;vertical-align:middle;color:rgb ( 63,63,63); font-family: ' Microsoft
Introduction to a KVM virtual machineKVM is the abbreviation for kernel-based Virtual machine and has become one of the mainstream VMM in academia. KVM Virtualization requires hardware support (such as Intel VT Technology or AMD V technology)is hardware-based full virtualization. KVM is easy and easy to install and use, and powerful for virtualization deployment
. Install the operating system inside the KVM , similar to the system installation method in VMware. Select NAT(bridging br0) When choosing the network connection mode!!! The virtual system image path is :/var/lib/libvirt/images/, Delete the appropriate . img file for the unwanted virtual system . 7. after Setup, wait for the system to install, because the network mode is bridged br0, the system is instal
Qemu-KVM is currently a popular virtualization technology. I will present a series of qemu-KVM content here in the next period. The virtualization mentioned here refers to the virtualization technology based on CPU hardware support.
KVM (kernel-based Virtual Machine) Website: http://www.linux-kvm.org/page/Main_Page
Introduction:
This article on the VPS used several common technology OpenVZ, Xen, KVM to do a simple introduction and comparison, in case you choose your own appropriate VPS
Many people see the same configuration of the VPS price difference is very large, it is not understood, in fact, there are many types of virtual VPS use, such as OpenVZ, Xen, KVM, Xen and HVM and PV. In +xen, PV is semi virtualized, HVM is full virt
Install kvm in centos 7.0
PRE-INSTALL
========================================================== ==================================
Kvm-related installation packages and their functions
Major kvm packages of qemu-KVM
Command Line tools and libraries required for creating virtual machines using python-javasinst
Virt-man
Directory
Directory KVM Virtualization Architecture DEVKVM QEMU Openstackkvmqemu The virtualization implementation of KVM
KVM Virtualization Architecture
The KVM is a virtualized module embedded in the Linux operating system standard kernel that converts a Linux standard kernel into a VMM, and a Linux standard kernel
operation of services on virtual machinesThe process of another physical host. This process does not significantly affect the end user, so that the administrator can perform offline repair or upgrade on the physical server without affecting the normal use of the user. And JingIn order to ensure the availability of Virtual Machine services during the migration process, the migration process has only a very short downtime. In the first phase of migration, the service runs on the VM of the source
I. Implementation notes
Company many services are soaked in Microsoft's Hpyerv virtual machine, it is to gradually migrate to the KVM, many domestic sites are for the migration of VMware, it is difficult to find the migration for Hyperv, in fact, the steps are almost simple, the following is the operation of the steps.
Note: If you have a snapshot, note that to merge the original virtual
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