DRBD’s history is quite remarkable. Reisner originally published the Distributed Replicated Block Device as part of his Master’s thesis at the Vienna University of Technology. Originally intended as a means of storing email messages in a redundant fashion, Reisner quickly realized the full potential of the newly developed solution. In November 2001, he co-founded LINBIT®, a Vienna, Austria based enterprise focused on advancing the development of DRBD and Linux High Availability.
In May 2005, Lars Ellenberg joined LINBIT to lead its R&D team with Phil Reisner. His dedication has been a priceless addition to the LINBIT development team. January 2007, DRBD 8 was released which broke previous performance barriers and at the same time introduced active-active clustering capability, allowing simultaneous write access from two cluster nodes. In 2008, LINBIT USA, LLC was founded to offer development, consultancy, 24/7 support, and OEM/ISV integration services in North, Central and South America. Recently, LINBIT attracted considerable attention by open-sourcing DRBD+, a formerly commercially licensed add-on that offered three and four node clustering support.
Phil Reisner is particularly impressed with Torvalds decision to integrate DRBD into Linux. “This is a token of trust in DRBD and a terrific acknowledgment of our work – a true milestone in our company’s history.” LINBIT North America, CEO, Kavan Smith highlights the advantages of Torvalds’ decision, “With this mainline addition to Linux, DRBD will be available to a wider audience of users enabling them to replicate data with more efficiency and control than ever before. Experiencing downtime? DRBD is the answer, not some expensive NAS/SAN device.”
The 2.6.33 Linux kernel release, of which DRBD will be an integral part, is currently expected for February 2010.