[luau] Software RAID (Donation of Oracle 9i Linux)

[Brian Low]

What would be the point of doing a RAID with 1 drive :)  You get 0
redundency.

Brian


-----Original Message-----
From: luau-admin at videl.ics.hawaii.edu
[mailto:luau-admin at videl.ics.hawaii.edu]On Behalf Of Eric Hattemer
Sent: Thursday, August 15, 2002 2:53 PM
To: luau at videl.ics.hawaii.edu
Subject: Re: [luau] Software RAID (Donation of Oracle 9i Linux)


In litteral terms, you can do software raid on linux with 1 HD and two
partitions.  However, it probably hurts performance, rather than
improving
it.  The multiple heads on a hard drive all line up vertically and scan
what's called a cyllinder (multiple sectors stacked on top of each
other).
They cannot read two partitions at the same time.  You could test out
software raid with two partitions, but I don't think you'd be too happy
with
it.  You can probably get RAID 1 going with a very slight advantage.  It
won't save you in case your drive fails entirely, but if you start to
get
bad sectors or filesystem errors, at least your HD is backed up on
another
partition.

-Eric Hattemer

----- Original Message -----
From: "W. Wayne Liauh" <LiauhW001 at Hawaii.rr.com>
To: <luau at videl.ics.hawaii.edu>
Sent: Thursday, August 15, 2002 1:54 PM
Subject: [luau] Software RAID (Donation of Oracle 9i Linux)


> <Not really :)>
>
> Just thought that with the current advancement of multiple-head HDs,
things might have changed.
> But I suppose if someone can develop a new type of BIOS?
>
>
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