From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex <creamyfish@gmail.com>
Subject: Re: Is this enough for us to have triple-parity RAID?
Date: Sun, 22 Apr 2012 11:14:16 +0800
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To: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
Cc: linux-raid@vger.kernel.org
List-Id: linux-raid.ids

Hi Piergiorgio,

Just being curious, any mathematical improvement in Reed-Solomon's
code like the
RS(96,64) you mentioned? The calculation of RS involves arbitrary
multiplication in a
Galois field and table look-up has to be used. Has that already changed=
?

Cheers,
Alex
On Sat, Apr 21, 2012 at 7:18 PM, Piergiorgio Sartor
<piergiorgio.sartor@nexgo.de> wrote:
> Hi Peter,
>
>> Perhaps it was not clear that "use self repairing coding
>> similarly to Parchive" does not mean the same as "use Parchive".
>
> sorry, I understood you meant storing somewhere
> files with parities.
>
>> Applying self repairing coding to RAID might be easier to
>> imagine considering of a RAID volume as a directory of
>> stripe-sized files.
>
> Exactly, but as far as I know this is the same as
> any N parities RAID.
>
> I mean, the mathematics and algorithm behind should
> be exactly the same...
>
> bye,
>
> --
>
> piergiorgio
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