VMWare

VMWare

1. Hypervisor

   • Bare-Metal OS
     • Directly interfaced with hardware
   • Resource Sharing
     • efficient usage of resources
   • Kernels of Virtualized OS interact with Hypervisor
   • Isolates the Virtual Machines
   • Dynamic load balancing
     • offers more memory than present (Ballooning)
   • Removes coupling of OS and Hardware
     • Transportability and availability

2. ESXI

   • VMWare's Virtualization Framework
   • Lightweight OS
     • Bootable over network
   • Interacts with virtualized OS
     • Virtual CPU Mapped to real CPU
     • Virtual NICs support network virtualization
     • Virtualized Memory (RAM)
     • Virtualized Secondary Storage
   • 2048 VMs can be run
   • Vms have separate folders
     • Folders have separate OS files
   • Virt. OS doesn't know it's virtualized
   • 12 TB RAM can be shared

3. Vcenter

   • VMware's monitoring/management framework for servers
   • 1000 hosts and 10000 VMs
   • Can have multiple Vcenters
   • Monitor resource utilization
     • Create Alerts and events to monitor performance
     • Access control of resources
     • On the fly configuration of servers
     • Server back ups and transfer of VMs