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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Michael Lednev <liettneff@bk.ru>
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Cc: Christian Baer <christian.baer@uni-dortmund.de>,
	freebsd-questions@freebsd.org
Subject: Re: RAID mirror really worked
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>>> gmirror works too very good without any hardware :)
>
> CB> Yes, but a hardware RAID works without the OS having to know about it. :-)
>
> ...and its failures? ;)
>
:)

for mirroring there is almost no CPU overhead so buying extra hardware 
doesn't make sense at all. not mentioning that most of such hardware are 
actually normal disk controllers with extra soft in BIOS. these are 
supported by ataraid driver.


much better is to use gmirror so it will be completely portable.

and - with gmirror you DO NOT have to mirror/stripe/concat whole drives.
and that's what i do most often - mirror important data but store 
unimportant data without it.