Hi,

I was wondering if anyone could tell me how to calculate/estimate the
overall MTBF of a RAID 1 (mirrored) configuration? I'm just looking for
a simple, "rule-of-thumb" type of calculation, assuming ideal
conditions.

I've been looking around for this, and I've seen a number of different
"takes" on this, and some of them seem to be quite at odds with each
other (and sometimes with themselves), so I thought that I'd post here
in the hopes that someone might be able to help.

Thanks,
Jim