This article is from the storage FAQ part1, by Rodney D. Van Meter with numerous contributions by others.
I took over the maintenance of the C.A.S FAQ from its originator, Joe Stith (firstname.lastname@example.org, Fermi National Accelerator Laboratory, at the time), in July '94. I have made many additions and edits of my own. It should be available on the various FAQ servers. Apologies for the under-construction formatting and lack of better referencing. I will add as my expertise and time allows and will include submissions sent to me (Rod Van Meter, email@example.com) and information put into the newsgroup by others. Yes, some of the submittals are from vendors (including me, see the disclaimer). If you post to the newsgroup and find yourself quoted in this FAQ but wish to be removed, please let me know. There is more information in my (still primitive) WWW version of the FAQ, including more commercial info. It is temporarily available at http://alumni.caltech.edu/~rdv/comp-arch-storage/FAQ-1.html, but this is probably not a good permanent home for it (volunteers?). I have also started working on a Japanese translation available there (only about 10% complete). There is also a good group of FAQs (including this one) stored at http://www.cis.ohio-state.edu/hypertext/faq/; prettier and easier to use but with only the info I actually post. The size of these FAQs is getting out of hand; I'm open to suggestions on material that doesn't really belong in a FAQ or areas where I'm simply too verbose (I may reduce the DLT info since there is now a separate FAQ). SHMO: when you see this, it means "Somebody Help Me Out!" I'm actively soliciting information on this topic. See the copyright notice near the end.