DRBD stands for Distributed Replicated block DEVICE. It serves for it to reflect block equipment on a productive (primary) server in real time on another (secondary) server. This procedure is used, in order to realize high availability in the UNIX/Linux surrounding field and to thus achieve a good availability of different services.

Function mode

All write accesses are conveyed over the network to the second server. Only if the second server acknowledged the successful recording procedure to the first server, this announces to the application the end recording procedure (this technology is comparable with a RAID 1 over TCP/IP). If the first server precipitates, this is announced as inactive. By a server monitoring software such as Heartbeat the second server can take over the function of the first server and continue working with the same data.

Related links

• Official DRBD side (English)
• The High Availability Linux Project (English)
• Commercial DRBD support

Articles in category "DRBD"

We found here 3 articles.

Related Websites

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• drbd
  Drbd is a block device which is designed to build high availability clusters. This is done by mirroring...


• Publications
  DRBD v8 - Replicated Storage with Shared Disk Semantics, Proceedings of the 12th ... Linux High Availability Clusters with Heartbeat, DRBD and DRBDLinks, ...


• Start
  DRBD is a block device which is designed to build high availability clusters. ... What is the scope of drbd, what else do I need to build a HA cluster ...