1 Virtualization Virtualization is the creation of substitutes for real resources – abstraction of real resources Users/Applications are typically unaware of the substitution (layer of abstraction) Examples: • computing systems/servers • network storage (e.g. SAN) • network resources (e.g. VLANs, VPNs, HSRP - virtual ip address assignment).
Virtualization is the creation of substitutes for real resources – abstraction of real resources Users/Applications are typically unaware of the substitution (layer of abstraction) Examples: computing systems/servers network storage (e.g. SAN) - PowerPoint PPT Presentation
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1
Virtualization
Virtualization is the creation of substitutes for real resources – abstraction of real resources
Users/Applications are typically unaware of the substitution (layer of abstraction)
System (machine) Virtualization A virtual machine is a tightly isolated software
container that can run its own operating systems and applications as if it were a physical computer.
Was first introduced by IBM in the 60’s X86 virtualization introduced in the 90’s by
VMWare On a given h/w platform (host) – simulated
(virtual) machine environments are created Benefits:
• consolidation to reduce hw costs• workloads consolidation• single consolidated view/management• portability of virtual machines• can be used for testing/training