Tilghman Lesher wrote:On Sunday 18 January 2004 12:01, Adthrawn wrote:
Spell out RAID - Redundant Array of Inexpensive Disks. Bingo.
That's "Independent Disks". It's the independence of each spindle that
is valued, not the cost proposition. If one spindle goes, it's not all
of your data which goes with it. Consider that many (most?) SCSI disks
aren't inexpensive.
The original meaning of the acronym was "Inexpensive," IIRC. It was later changed to allow either meaning of the word. I just checked; it is "inexpensive" in both of my CS architecture textbooks.
A nit, I know, but I don't want Adthrawn to get a complex :-)
:-p
The whole point of RAID originally (and I'm talking nineties RAID) was to give small businesses the chance at having low-cost centralized mass storage. One volume made from multiple disks, with the unique ability to keep either stripped or mirrored backups - fantastic. And it came as a free add-on for Apple Servers (yippee!).
SCSI disks are cheap if the work you're doing is expensive. :-)
Ad.
PS SCSI is sooo yesterday. We're onto Serial ATA, and lot's of it. We're just about to buy a 3.5TB SAN RAID array which is built from Serial ATA's. And it's fast. Plus damn cheap. And Apple of course :-)
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