ZFS License and Future

C. P. Ghost cpghost at cordula.ws
Mon Nov 8 20:44:31 UTC 2010

On Mon, Nov 8, 2010 at 7:38 PM, Roland Smith <rsmith at xs4all.nl> wrote:
> On Mon, Nov 08, 2010 at 05:08:33PM +0100, Svein Skogen (Listmail account) wrote:
>> But it's still not capable of true forward-error-correction. If we are
>> to embark upon creating a new solution, using something that is cheap
>> for "normal cases" but can still be used (albeit more expensively) for
>> error recovery would (imho) be better. Even if that means we get less
>> net storage out of the gross pool (it could perhaps be configurable?)
> I'm not sure what you mean by "true forward-error-correction". But if you want
> to make _really sure_ that a spinning disk hasn't mangled the data you should:

Maybe something like Reed-Solomon ECC in different blocks.
Should a data block go bad, it could be rebuilt on-the-fly from
those ECC blocks:



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