Intro to Virtualization : A Key to Success for VMware Fusion
Posted on | August 13, 2007 |
VMWare recently launched its new virtual workstation VMWare Fusion supporting virtualization. Lets get a look what Virtualization really means and how its gonna change the world.
According to VMWare experts, Virtualization is “the ability to run another operating system in a virtual machine (VM) while still running Mac OS X”
Virtualization is an abstraction layer that decouples the physical hardware from the operating system to deliver greater IT resource utilization and flexibility.
Virtualization allows multiple virtual machines, with heterogeneous operating systems to run in isolation, side-by-side on the same physical machine. Each virtual machine has its own set of virtual hardware (e.g., RAM, CPU, NIC, etc.) upon which an operating system and applications are loaded. The operating system sees a consistent, normalized set of hardware regardless of the actual physical hardware components.
Benefits of Virtualization
Partitioning
- Multiple applications and operating systems can be supported within a single physical system
- Servers can be consolidated into virtual machines on either a scale-up or scale-out architecture
- Computing resources are treated as a uniform pool to be allocated to virtual machines in a controlled manner
Isolation
- Virtual machines are completely isolated from the host machine and other virtual machines. If a virtual machine crashes, all others are unaffected
- Data does not leak across virtual machines and applications can only communicate over configured network connections
Encapsulation
- Complete virtual machine environment is saved as a single file; easy to back up, move and copy
- Standardized virtualized hardware is presented to the application - guaranteeing compatibility
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