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Concerned with problems he saw in the direction FreeBSD 5.x was headed in regards to concurrency, [10] and coupled with the fact that Dillon's access to the FreeBSD source code repository was revoked due to a falling-out with other FreeBSD developers, he started the DragonFly BSD project in 2003, implementing the SMP model using light-weight ...
A virtual kernel architecture (vkernel) is an operating system virtualisation paradigm where kernel code can be compiled to run in the user space, for example, to ease debugging of various kernel-level components, [3] [4] [5] in addition to general-purpose virtualisation and compartmentalisation of system resources.
DragonFly BSD is a free and open-source Unix-like operating system forked from FreeBSD 4.8. Matthew Dillon , an Amiga developer in the late 1980s and early 1990s and FreeBSD developer between 1994 and 2003, began working on DragonFly BSD in June 2003 and announced it on the FreeBSD mailing lists on 16 July 2003.
Dragonfly: NASA and the Crisis Aboard Mir (ISBN 0-88730-783-3) is a 1999 book by Bryan Burrough about the Russian Mir space station and the cosmonauts and astronauts who served aboard. The story centres on astronaut Jerry Linenger and the events on the Shuttle and Mir Space Programme in 1997. Personnel covered in the book
HAMMER is a high-availability 64-bit file system developed by Matthew Dillon for DragonFly BSD using B+ trees.Its major features include infinite NFS-exportable snapshots, master–multislave operation, configurable history retention, fsckless-mount, and checksums to deal with data corruption. [5]
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Dragonfly-Dragonfly is a drone-like rotorcraft that would explore the prebiotic chemistry and habitability of dozens of sites on Saturn’s moon Titan, an ocean world in our solar system. Dragonfly will study dozens of promising sites around Saturn’s icy moon Titan and advance our search for the building blocks of life in the universe.
[5] In DragonFly BSD, DragonFly's own HAMMER filesystem already implements network mirroring, and the natacontrol utility could be used to configure nataraid(4), another software RAID implementation, which originally appeared with FreeBSD 6.0 as ataraid(4), but was deprecated with FreeBSD 9, and removed before FreeBSD 10.0; and a NetBSD's port ...