[tahoe-dev] blocks instead of files?

[Jody Harris]

On Wed, Mar 10, 2010 at 4:35 PM, David-Sarah Hopwood <
david-sarah at jacaranda.org> wrote:

> Chris Palmer wrote:
> > Zooko O'Whielacronx writes:
> >
> >> We want to continue storing shares of a file all on one server in order
> to
> >> correlate failures (there is an interesting technical reason why it is
> >> safer to do it this way than to spread out blocks from one share to
> >> multiple servers)
> >
> > Is there a cite I can read?
>
> The argument is straightforward. If you need k out of N shares to
> reconstruct a segment, but you need all segments in order to reconstruct
> a whole file, and the segment shares are stored on *different* subsets
> of k servers, then you will end up needing more than k servers to
> reconstruct the file.
>
> This argument seems to "cut both ways."

I tend to agree with Chris Palmer, but I'm not convinced that I'm right in
doing do so.
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