Documentation/blockdev/drbd/README.txt

   1 Description
   2
   3   DRBD is a shared-nothing, synchronously replicated block device. It
   4   is designed to serve as a building block for high availability
   5   clusters and in this context, is a "drop-in" replacement for shared
   6   storage. Simplistically, you could see it as a network RAID 1.
   7
   8   Please visit http://www.drbd.org to find out more.
   9
  10 The here included files are intended to help understand the implementation
  11
  12 DRBD-8.3-data-packets.svg, DRBD-data-packets.svg
  13   relates some functions, and write packets.
  14
  15 conn-states-8.dot, disk-states-8.dot, node-states-8.dot
  16   The sub graphs of DRBD's state transitions