Virtualization

Different Operating Systems

• Windows
• Mac OS X
• Linux
• iOS
• Android

System Resources

• Memory (RAM)
• Storage (HDD/SSD)
• Processor (CPU)
• etc…

Whats a Virtual Machine (VM)?

• Computers within computers
• All running on same set of resources
• Can do different things at the same time
• Can run multiple VM’s on one set of hardware
• VM’s typically run on virtual hard drive
  • Can easily transfer
  • Can easily snapshot

Benefits of Virtualization

• Security: Separate applications from interfering with each other
• Testing: Open unknown, potentially malicious files
• Learning: Try out new programs without having to worry
• Resource optimization: Use what you have more efficiently
• Many more!

Hypervisors

Fancy word for software that runs at the OS level to manage VM’s

Clustering

• One server to rule them all
• Ability to manage multiple hypervisors at once
• Combine resources
• Redundancy