On Mon, 31 Jan 2011 18:58:29 -0600
Stan Hoeppner [off-list ref] wrote:

Unfortunately there is no organization, no standards body, that defines RAID
levels.

There actually is/was:
http://www.freeopenbook.com/upgrading-repairing-pc/ch07lev1sec6.html

"An organization called the RAID Advisory Board (RAB) was formed in July 1992
to standardize, classify, and educate on the subject of RAID. The RAB has
developed specifications for RAID, a conformance program for the various RAID
levels, and a classification program for RAID hardware."

Just who the fsck they are and who gave them the authority to define anything,
is another question. http://www.raid-advisory.com/ is mentioned in various
sources as RAB's website, currently a placeholder domain with spam.

-- 
With respect,
Roman