Linbit's system for mirroring filesystems across the Network, typically a dedicated LAN, but also cabable of WAN replication, written by Philipp Reisner[1] and Lars Ellenberg[2]
This is the general replication technology which is most commonly used by members of the Linux-HA community. By the way, DRBD is a registered trademark of Linbit[3].
The DRBD User's Guide[4] is excellent documentation and reference, you are strongly encouraged to thoroughly read it. Learn how to set it up manually and how things work. Use DRBD manually to get a feeling for what it does. Then you may start thinking about using it as a cluster resource.
For further information, refer to the drbd.org site[5].
If you want to be on the safe side, or just want to support the authors, commercial DRBD support[6] is available.
| [1] | http://www.linbit.com/en/company/management/philipp-reisner/ |
| [2] | http://www.linbit.com/en/company/management/lars-ellenberg/ |
| [3] | http://www.linbit.com/en/ |
| [4] | http://www.drbd.org/docs/about/ |
| [5] | http://www.drbd.org |
| [6] | http://www.linbit.com/en/products-services/drbd/ |
| [7] | http://www.linux-ha.org/BusinessContinuity |
This information provided courtesy of the Linux-HA project at http://linux-ha.org/