DRBD® is open source distributed replicated block storage software for the Linux platform. It is implemented as a kernel driver, several user space management applications, and some shell scripts.
DRBD is traditionally used in high availability (HA) computer clusters, but beginning with DRBD version 9, it can also be used to create larger software-defined storage pools with a focus on cloud integration.
Helpful DRBD resources:
- DRBD User’s Guide
- DRBD open source codebase on GitHub
- Manual pages related to installed versions of DRBD and related utilities:
man drbd<Tab> - Important release announcements about DRBD and other LINBIT software through the drbd-announce email list