B.14.1. Distributed Replicated Block Device (DRBD)

In the following section, we provide answers to questions that are most frequently asked about Distributed Replicated Block Device (DRBD).


Questions and Answers

B.14.1.1: What is DRBD?

DRBD is an acronym for Distributed Replicated Block Device. DRBD is an open source Linux kernel block device which leverages synchronous replication to achieve a consistent view of data between two systems, typically an Active and Passive system. DRBD currently supports all the major flavors of Linux and comes bundled in several major Linux distributions. The DRBD project is maintained by LINBIT.

B.14.1.2: What are “Block Devices”?

A block device is the type of device used to represent storage in the Linux Kernel. All physical disk devices present a block device interface. Additionally, virtual disk systems like LVM or DRBD present a block device interface. In this way, the file system or other software that might want to access a disk device can be used with any number of real or virtual devices without having to know anything about their underlying implementation details.

B.14.1.3: How is DRBD licensed?

DRBD is licensed under the GPL.

B.14.1.4: Where can I download DRBD?

Please see http://www.drbd.org/download/packages/.

B.14.1.5: If I find a bug in DRBD, to whom do I submit the issue?

Bug reports should be submitted to the DRBD mailing list. Please see http://lists.linbit.com/.

B.14.1.6: Where can I get more technical and business information concerning MySQL and DRBD?

Please visit http://mysql.com/drbd/.

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