EmbLogic's Blog

Introduction to Block Driver

Overview :

  •  Block Drivers are act as conduit between core memory and secondary storage.
  • There is a virtual memory layer between core memory and secondary storage.
  • Block Layer could be seen as a part of virtual memory subsystem.
  • Block driver provides access to devices that transfer randomly accessible data.
  • Block Driver controls the block layer, makes decision about collecting bytes into group of bytes, handle interaction between virtual layer and block layer, block layer and block devices.
  • Block Driver collect chunks of bytes into blocks.
  • As almost every block device consist of file system also. Therefore block device driver must take care of file system.


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