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Raid with only one hard drive??

K

Kwad Guy

Diamond Member
I have an HP "FastRaid" card, which fits their
Kayak XU & XW series computers. According to the
documentation, this card supports the standard
striped OR mirrored configurations with two drives.
However, it also supports "Raid" on 1 hard drive.
It claims that single drive "Raid" is "considerably"
faster than non-raid, though it doesn't provide much
in the way to documentation as to why or how...

So what's 1 drive "raid"?

Kwad
 
"However, it also supports "Raid" on 1 hard drive."

Are you sure that doesn't say "RAID 1"? You need multiple hard drives for RAID whichever way you look at it.
 
Nope...I know about Raid 1, and it supports Raid 1. But it
also supports "Raid" on 1 hard drive. They note that "raid"
on 1 hard drive is not technically raid, but then claim that
you will see an appreciable speedup using this method.

I guess it must be some weird structuring of the data combined
with something in the raid card controller. But if this method
were worth anything, why wouldn't it part of standard chipsets?

Kwad
 
Aight, I've been reading some user manuals on HP's site. Looks like the feature in question somehow stripes a single drive RAID 0 style, and the supposed performance gain comes from the controller using its fancy cache to access the data.
 
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