-----Original Message-----
From: Igmar Palsenberg <[EMAIL PROTECTED]>
To: Redhat List <[EMAIL PROTECTED]>; [EMAIL PROTECTED]
<[EMAIL PROTECTED]>
Date: Sunday, June 07, 1998 7:28 AM
Subject: Re: Multiple harddrives seen as one?
>Don't think RAID is what he means. I think he means combining multiple
>block-devices in one. RAID is putting the SAME data on more then one
device.
RAID level 0 is striping.
RAID level 1 is mirroring.
RAID levels 3, 4, and 5 are striping with parity.
RAID level 0 is often not referred to as RAID at all. I believe it's not
part of the "official" RAID definition, but if so it's certainly a defacto
definition.
There's also an option that I call "concatenation" (not sure what official
name is) where you write everything onto one disk until it's full, then go
on to the next one. It doesn't have a RAID name. RAID 0 would give you
better throughput, and acheive the same effect in terms of space.
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