Re: RAID 1 or 5 ?

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Article #437

#437

From: Bill Todd
Date: Fri, 30 Jul 1999 00:00

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highend <highend@srmc.com> wrote in message
news:7nsoie$5g1$2@birch.prod.itd.earthlink.net...

...

> RAID 5 would only support the loss of one drive at a time
> and i can't think of anything that would support the loss of "any"
> 2 drives at once

I suspect that statement included an implied "... and still support 2
drives' worth of data on 4 drives total."  Clearly you could just mirror the
same single drive's worth of data on all 4 drives and tolerate the
simultaneous loss of any *3*, and with a bit more ingenuity you could rotate
1.333... drives' worth of data around the 4 drives and tolerate the
simultaneous loss of any 2.

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From: "Bill Todd" <billtodd@foo.mv.com>
Subject: Re: RAID 1 or 5 ?
Date: 1999/07/30
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