[Dclug] Question about Speed: data transmission vs write-to-disk

[Alan McConnell]

Assembled Wisdom!

I hope this is not considered OT; it is somewhat theoretical.

Data, over very fast trunk routers, comes at one very fast, what
with frequence of light carrier waves, and ever-increasing modulation
technology.  If the output of some such pipe has to be written
to disk, can the writing to disk keep up?  Will it always be
able to?

My thought:  RAID has, in my hearing, always been discussed as a
security/safety measure, so that data can be recovered even in case
of a disk crash.  But are writes to a RAID system, by say a multi-processor
machine, faster than straight writes to a single disk?

Any thoughts much appreciated; extra credit for detailed knowledge!<G>

Best wishes,

Alan

-- 
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