Hello, everyone!
This post I will share with you some virtualization technology.
Zoning:
Partitioning means the ability of the virtualization layer to partition server resources for multiple virtual machines; each virtual machine can run a single operating system (same or different operating systems) at the same time, enabling you to run multiple applications on a single server; each operating system can only see the "virtualization layer" provided for it. Virtual hardware (virtual network card, CPU, memory, etc.) makes it think it runs on its own dedicated server.
Isolation:
Virtual machines are isolated from each other:
A virtual machine crash or failure (e.g., operating system failure, application crash, driver failure, etc.) does not affect other virtual machines on the same server.
Viruses, worms, etc. in a virtual machine are isolated from other virtual machines, just as each virtual machine is located on a separate physical machine.
Resource control can be done to provide performance isolation: you can specify the minimum and maximum resource usage for each virtual machine to ensure that a virtual machine does not occupy all resources and make other virtual machines in the same system unavailable.
You can run multiple loads/applications/operating systems on a single machine at the same time without the problems we mentioned when we discussed the limitations of traditional x86 server architecture (application conflicts, DLL conflicts, etc.)
Encapsulation:
Encapsulation means storing the entire virtual machine (hardware configuration, BIOS configuration, memory state, disk state, CPU state) in a small group of files independent of physical hardware. In this way, you can copy, save and move virtual machines anytime, anywhere and on demand by copying only a few files.
Relative to hardware independence:
Because the virtual machine runs on the virtualization layer, only the virtual hardware provided by the virtualization layer can be seen; this virtual hardware also does not need to consider the physical server situation; thus, the virtual machine can run on any x86 server (IBM, Dell, HP, etc.) without any modification. This breaks the constraints between the operating system and hardware, as well as between the application and the operating system/hardware.
That's all, thanks!
