[tahoe-dev] Tahoe-LAFS is widely misunderstood

[Shawn Willden]

On Wed, Feb 2, 2011 at 3:40 PM, Chris Palmer <chris at noncombatant.org> wrote:

> Shawn Willden writes:
>
> > Break-even for those two configurations is when server reliability is at
> > 60.7%.  Above that, 5-of-10 is better, below that, 1-of-2 is better.
>
> Also, Octavia is not 1-of-2. It is 1-of-M.


The same situation applies, though.  For any given expansion factor E,
assuming moderately high server reliability, you'll get better net
reliability with N/E-of-N than with 1-of-E.  As E goes up, the level of
server reliability required for break-even declines, and the advantage of
erasure coding increases.

-- 
Shawn
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