https://www.cnblogs.com/zhrngM/p/9547928.html
As the company recently made virtualization monitoring, and therefore requires knowledge on virtualization to learn to sum up, for the concept of virtualization, taken from Baidu Encyclopedia, as follows:
virtualization, is through virtualization technology will be a computer virtual as multiple logical computer. A plurality of logical computers running simultaneously on a single computer, computer executable logic for each different Caozuoxitong, and the application can run independently of each other without affecting each other in a space, thereby significantly improving the working efficiency of a computer.
1, virtualization classification
Now the mainstream virtualization is divided into the following categories: server virtualization, desktop virtualization, storage virtualization, network virtualization and application virtualization, each type of virtualization has its own characteristics and emphasis.
Server virtualization is where we are going to understand the focus.
2, the major virtualization vendors
For virtualization, one of the focus of future development direction, of course, subject to the attention of major companies, mainly manufacturers have vmware (focused on server virtualization), Citrix (focus on desktop virtualization), IBM (VMControl), Microsoft Windows Server 2008 Hyper-V. Which we often use the company's products vmware,
vmware company vsphere virtualization products should be said that very fire in the country, major companies are now using this product to make virtualization for their business systems.
3, VMware Virtualization Products
The company's products are mainly vmware vmware workstation we often use (the latest version is 10), vmware server, vmware vsphere, vmware horizon view (desktop virtualization product).
3.1、vmware workstation
The main function:
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- Virtual machine running in the background
- Integrated vnc server, capable of remote connection vnc client
- Seamless interface (Unity function)
- Vmware workstation remotely connect to a shared virtual machine
- By wsx server, the vmware workstation in a shared virtual machine in a manner readily available for web users
- Upload virtual machines to vspher or vsphere downloaded from the virtual machine to the local
3.2、vmware server
Formerly known as vmware gsx server-oriented in the "working group" of department-level virtual machine products, but also need to rely on the operating system.
3.3、vmware esx server与esxi
Can be said vmware virtualized cloud foundation products, integrated into the product linux, mounted directly on the physical server inside.
3.4、vsphere client
Esxi server can remotely connect and vcenter server.
3.5、vmware vcenter server
3.5.1, vsphere network
Virtual switch
each virtual switch may be linked to the one or more physical NICs hosts, vsphere standard switch when bound to multiple physical NICs, NICs may serve multiple physical transfer of load balancing and fault using
3.5.2, storage
It has been talked about before, here vspere can use various storage services, such as iscsi.
3.5.3 Advanced features
VMOTION
Virtual machine migration function
HA (high availability)
when a cluster virtual machine failure, on the other alternate host the virtual machine
migration of virtual machine
FT (fault tolerance)
Fault tolerance, vLockstep host running on separate virtual lock synchronization same manner to provide continuous availability based hosts.
DRS (distributed resource scheduler)
Automatic failover and load balancing can be combined.
3.6、vmware vcenter converter
The physical machines into virtual machine image for use vmware
to other products virtual machine or system image is converted to use vmware
3.7、vmware player
You can run vmware workstation, microsoft virtual pc microsoft virtual server or virtual machine.
3.8、vmware horizon view
vmware introduced desktop products, vmware view client by using the microsoft or vmware proprietary RDP protocol PCoIP protocol, connected to a virtual desktop, and can use a local USB device, local storage