Virtualization & File System    By Nikhileshkumar Ikhar
File System• Abstraction of H/W• Different kinds of FS  – ext  – FAT32, NTFS  – Brtfs  – Hadoop, Samba
Virtualization [1]• With OS assistance• Without OS assistance  – Hypervisor
Virtualization• Full Virtualization  – Guest OS doesn’t know about virtualization  – Binary translation, simulation/emulat...
Permission [2]• Ring Structure  – open in UserSpace           User Space                          3  – sys_open in Kernel ...
Virtualization• Memory Virtualization  – Real MMU for Virtual MMU• Device and I/O Virtualization  – Ethernet, Sound Card, ...
Internet Links1. http://www.vmware.com/files/pdf/VMware_   paravirtualization.pdf2. http://en.wikipedia.org/wiki/Ring_(com...
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Virtualization & file system

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Virtualization & file system

  1. 1. Virtualization & File System By Nikhileshkumar Ikhar
  2. 2. File System• Abstraction of H/W• Different kinds of FS – ext – FAT32, NTFS – Brtfs – Hadoop, Samba
  3. 3. Virtualization [1]• With OS assistance• Without OS assistance – Hypervisor
  4. 4. Virtualization• Full Virtualization – Guest OS doesn’t know about virtualization – Binary translation, simulation/emulation• Para Virtualization – Guest OS is modified for virtualization• H/w Assisted Virtualization – Hypervisor assist in virtualization – IntelVT and AMD-V
  5. 5. Permission [2]• Ring Structure – open in UserSpace User Space 3 – sys_open in Kernel 2 1 0 OS
  6. 6. Virtualization• Memory Virtualization – Real MMU for Virtual MMU• Device and I/O Virtualization – Ethernet, Sound Card, USB, NIC – KeyBoard, Mouse, Comm port – etc
  7. 7. Internet Links1. http://www.vmware.com/files/pdf/VMware_ paravirtualization.pdf2. http://en.wikipedia.org/wiki/Ring_(computer _security)
  8. 8. Thank You

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