Raid Deffinitions

Andrew Latham lathama at lathama.com
Thu Oct 9 17:52:22 EDT 2003


thanks.

I know that all the different raid levels are here for a reason and raid5 is
great but what are the benefits of the rest?

--- Mark Hahn <hahn at physics.mcmaster.ca> wrote:
> > Discussing a client setup the other day a cohort and I came to a different
> > opinion on what each raid level does. Is there a guide/standard to define
> how
> > it should work. Also do any vendors stray from the beaten path and add
> there
> > own levels?
> 
> sure they do.  IMO the only important levels are:
> 
> raid0 - striping
> raid1 - mirroring
> raid5 - rotating parity-based array
> 
> vendors who make a big deal of obvious extensions like raid 10 
> (mirrored stripes or vice versa) are immediately hung up on by me...
> 


=====
Andrew Latham

Penguin loving, moralist agnostic.

LathamA.com - (lay-th-ham-eh)
lathama at lathama.com - lathama at yahoo.com
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