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Re: [FORENING] Status for www.sslug.dk



On Sat, May 03, 2003 at 01:15:29PM +0200, Janus Sandsgaard wrote:
> Frank Damgaard <sslug@sslug> writes:
> 
> > > Måske SSLUG skulle apellere om at få noget raid?
> > 
> > Måske lidt overkill.
> 
> Forresten: Hvorfor er de overkill at ønske sig noget ordentligt raid
> til SSLUG? Prismæssigt og ift. sponsorer måske, men vel ikke teknisk
> overkill?

Tjoe, hvis vi regner med at www.sslug.dk mest er en maskine der
betjerner medlemmerne på forskellig måde over internettet (i modsætning 
til at være en maskine der skal lave en masse beregninger) og at
den højst kan køre 100 Mbit/s på nettet, så er raid overkill.
Almindelige diske leverer ca 300 Mbit/s. med programmeret RAID
får man ca ydelse som sammenlagt per drev, idet det dog er per
DMA kanal maskinen kan operere på drevene. Og PCI-bussen 
er en flaskehals med normalt 1000 Mbit/s som højeste ydelse.
Så selv med en 1000 Mbit/s netværksforbindelse vil brug af to
alm IDE diske kunne yde mere IO end resten af maskinen kan behandle.

Hilsen
keld


 
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