Xen VBD Virtual Block Devices features

Acronyms:

  • VBD, Virtual Block Devices
  • SR, Storage Repositoy
  • VDI, Virtual Disk Image
  • VM , Virtual Machine

 

VBD Virtual Block Devices feaures:

  • Single VBD represent the interface between a VDI attached in a SR and a VM
  • VBD are object connectors
  • VBD maps SR -> VDI VS VM
  • VBD can be fine-tunned
  • VBD can be managed using console commands

Xen PBD Physical Block Devices features

Acronyms:

  • PBD, Physical Block Devices
  • SR, Storage Repository

 

PBD Physical Block Devices features

  • Single PBD represent an interface between a physical server and an attached SR
  • PDB are connector objects
  • PDB maps SR vs Physical Hosts
  • PDB store the device configuration
  • PDB can be managed by console commands

 

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