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NBD (Network Block Device)

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Bird’s eye view: you have a block device, for example /dev/nda. It acts like any other black device, which means that you can create a file system on it, make it part of a mirror or RAID 5 array and so on.

But the actual hardware is somewhere out on the network.

Most likely a *local* network, of course. Maybe someday you could do this on a public network, but local is scary enough. The bug list for this project makes you wonder why anyone would even think about deploying it for important data – it just goes on and on and on with hangs and crashes. Sounds like a great way to spend the weekend, doesn’t it?

Links: http://nbd.sourceforge.net/

http://www.it.uc3m.es/~ptb/nbd/

A.P. Lawrence provides SCO Unix and Linux consulting services http://www.pcunix.com

NBD (Network Block Device)
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