Distributed Replicated Block Device

Distributed Replicated Block Device (DRBD) is a distributed replicated storage system for the Linux platform. It mirrors block devices between multiple hosts, functioning transparently to applications on the host systems. This replication can involve any type of block device, such as hard drives, partitions, RAID setups, or logical volumes.

Key facts

Software.name: DRBD
Software.logo: DRBD logo 2016.svg
Software.logo size: 200px
Software.screenshot: DRBD Diagram v1.1.svg
Software.caption: Overview of DRBD concept
Software.author: Philipp Reisner, Lars Ellenberg
Software.developer: LINBIT HA-Solutions GmbH, Vienna and LINBIT USA LLC, Oregon
Software.latest release version: 9.3.0
Software.latest preview version: 10.0.0a4
Software.programming language: C
Software.operating system: Linux
Software.genre: Distributed storage system
Software.license: GNU General Public License v2

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Source code

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Link to the source-code README · 4,488 chars · not written by Vinony

Wikidata facts

Official website: drbd.org
Image: DRBD concept overview.png

Show 4 more facts

Commons gallery: DRBD
software version identifier: 9.3.2
source code repository URL: github.com/LINBIT/drbd
user manual URL: docs.linbit.com/docs/users-guide-9.0

Sources (5)

via Wikidata · CC0

~6 min read

Article

8 sections

Contents

Mode of operation
Shared cluster storage comparison
Comparison to RAID-1
Applications
Inclusion in Linux kernel
See also
References
External links

DRBD is implemented as a kernel driver, several userspace 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.