[rescue] RAID (was Re: Insane drives)

Brian Hechinger rescue at sunhelp.org
Tue Jul 10 15:05:23 CDT 2001


On Tue, Jul 10, 2001 at 09:00:55PM +0100, David Murphy wrote:
> 
> > Raid 4: 1 disk dedicated for parity. Parity calculated by the
> > block/stripe Heads allowed to be out of sync. (Parity disk becomes
> > bottleneck for writes)
> 
> Is it Netpp that claim to do RAID4? Do they use the above definition?

yes, with the exception that they cache enough data that they can "burst" it
to the drives, thus making the parity drive less "hot" although if that's the
case i don't see why they just didn't use RAID 3.

-brian



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