Distributed Replicated Block Device - DRBD — The Linux Kernel 5.18.5-gnu-1 documentation

# Distributed Replicated Block Device - DRBD

## Description

> DRBD is a shared-nothing, synchronously replicated block device. It is designed to serve as a building block for high availability clusters and in this context, is a “drop-in” replacement for shared storage. Simplistically, you could see it as a network RAID 1.

> Please visit https://www.drbd.org to find out more.

- kernel data structure for DRBD-9
- Data flows that Relate some functions, and write packets
- Sub graphs of DRBD’s state transitions