Thread (35 messages) 35 messages, 10 authors, 2012-05-01

Re: Is this enough for us to have triple-parity RAID?

From: Alex <hidden>
Date: 2012-04-22 03:14:16

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
[off-list ref] wrote:
Hi Peter,
quoted
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.
quoted
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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