On Wed, 29 Jan 2003, Matthew N. Dodd wrote: > On Wed, 29 Jan 2003, Brandon D. Valentine wrote: > > IMO NBD is less of a hack than you think it is. It is one of the > > necessary components for creating a single system image from a cluster > > of commodity hardware and this is something Linux developers are working > > earnestly on. They're targeting a poor man's NUMA. > > Sorry, it still sounds dumb. > > They should really look at Sprite. (And anyone thats doing clustering and > not looking at VMS deserves what they get.) > > On a real cluster running a single image all all the drives would just > show up. There wouldn't be any hacking going on. Stuff like this kind of > requires 64 bit machines to be at all useful. >
Only as long as only clusters with some level of single system image (for various values of it) are allowed to be real clusters. But calling NBD a necessary component of a single system image is very probably wrong - its almost at cross purposes to getting to a single system image cluster. NBD is neither needed (you could use say transaction based function shipping for one example) nor sufficent. > -- > | Matthew N. Dodd | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD | > | [EMAIL PROTECTED] | 2 x '84 Volvo 245DL | ix86,sparc,pmax | > | http://www.jurai.net/~winter | For Great Justice! | ISO8802.5 4ever | > > To Unsubscribe: send mail to [EMAIL PROTECTED] > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
