From: "Manu Abraham" <abraham.manu@gmail.com>
To: "Evgeniy Polyakov" <johnpol@2ka.mipt.ru>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: Distributed storage.
Date: Fri, 3 Aug 2007 09:04:51 +0400 [thread overview]
Message-ID: <1a297b360708022204u4fc7603pb6baebe2bdf28618@mail.gmail.com> (raw)
In-Reply-To: <20070731171347.GA14267@2ka.mipt.ru>
On 7/31/07, Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:
> TODO list currently includes following main items:
> * redundancy algorithm (drop me a request of your own, but it is highly
> unlikley that Reed-Solomon based will ever be used - it is too slow
> for distributed RAID, I consider WEAVER codes)
LDPC codes[1][2] have been replacing Turbo code[3] with regards to
communication links and we have been seeing that transition. (maybe
helpful, came to mind seeing the mention of Turbo code) Don't know how
weaver compares to LDPC, though found some comparisons [4][5] But
looking at fault tolerance figures, i guess Weaver is much better.
[1] http://www.ldpc-codes.com/
[2] http://portal.acm.org/citation.cfm?id=1240497
[3] http://en.wikipedia.org/wiki/Turbo_code
[4] http://domino.research.ibm.com/library/cyberdig.nsf/papers/BD559022A190D41C85257212006CEC11/$File/rj10391.pdf
[5] http://hplabs.hp.com/personal/Jay_Wylie/publications/wylie_dsn2007.pdf
next prev parent reply other threads:[~2007-08-03 5:04 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-31 17:13 Distributed storage Evgeniy Polyakov
2007-08-02 21:08 ` Daniel Phillips
2007-08-03 10:26 ` Evgeniy Polyakov
2007-08-03 10:57 ` Evgeniy Polyakov
2007-08-03 12:27 ` Peter Zijlstra
2007-08-03 13:49 ` Evgeniy Polyakov
2007-08-03 14:53 ` Peter Zijlstra
2007-08-03 19:48 ` Daniel Phillips
2007-08-03 19:41 ` Daniel Phillips
2007-08-04 1:19 ` Daniel Phillips
2007-08-04 16:37 ` Evgeniy Polyakov
2007-08-05 8:04 ` Daniel Phillips
2007-08-05 15:08 ` Evgeniy Polyakov
2007-08-05 21:23 ` Daniel Phillips
2007-08-06 8:25 ` Evgeniy Polyakov
2007-08-07 12:05 ` Jens Axboe
2007-08-07 18:24 ` Daniel Phillips
2007-08-07 20:55 ` Jens Axboe
2007-08-08 9:54 ` Block device throttling [Re: Distributed storage.] Evgeniy Polyakov
2007-08-08 10:17 ` [1/1] " Evgeniy Polyakov
2007-08-08 13:28 ` Evgeniy Polyakov
2007-08-12 23:16 ` Daniel Phillips
2007-08-13 8:18 ` Evgeniy Polyakov
2007-08-27 21:57 ` Daniel Phillips
2007-08-13 5:22 ` Daniel Phillips
2007-08-13 5:36 ` Daniel Phillips
2007-08-13 6:44 ` Daniel Phillips
2007-08-13 8:14 ` Evgeniy Polyakov
2007-08-13 11:04 ` Daniel Phillips
2007-08-13 12:04 ` Evgeniy Polyakov
2007-08-13 12:18 ` Daniel Phillips
2007-08-13 12:24 ` Evgeniy Polyakov
2007-08-13 8:23 ` Evgeniy Polyakov
2007-08-13 11:18 ` Daniel Phillips
2007-08-13 12:18 ` Evgeniy Polyakov
2007-08-13 13:04 ` Daniel Phillips
2007-08-14 8:46 ` Evgeniy Polyakov
2007-08-14 11:13 ` Daniel Phillips
2007-08-14 11:30 ` Evgeniy Polyakov
2007-08-14 11:35 ` Daniel Phillips
2007-08-14 11:50 ` Evgeniy Polyakov
2007-08-14 12:32 ` Daniel Phillips
2007-08-14 12:46 ` Evgeniy Polyakov
2007-08-14 12:54 ` Daniel Phillips
2007-08-12 23:36 ` Distributed storage Daniel Phillips
2007-08-13 7:28 ` Jens Axboe
2007-08-13 7:45 ` Jens Axboe
2007-08-13 9:08 ` Daniel Phillips
2007-08-13 9:13 ` Jens Axboe
2007-08-13 9:55 ` Daniel Phillips
2007-08-13 10:06 ` Jens Axboe
2007-08-13 10:15 ` Daniel Phillips
2007-08-13 10:22 ` Jens Axboe
2007-08-13 10:32 ` Daniel Phillips
2007-08-13 9:18 ` Evgeniy Polyakov
2007-08-13 10:12 ` Daniel Phillips
2007-08-13 11:03 ` Evgeniy Polyakov
2007-08-13 11:45 ` Daniel Phillips
2007-08-13 8:59 ` Daniel Phillips
2007-08-13 9:12 ` Jens Axboe
2007-08-13 23:27 ` Daniel Phillips
2007-08-03 4:09 ` Mike Snitzer
2007-08-03 10:42 ` Evgeniy Polyakov
2007-08-04 0:49 ` Daniel Phillips
2007-08-03 5:04 ` Manu Abraham [this message]
2007-08-03 10:44 ` Evgeniy Polyakov
2007-08-04 2:51 ` Dave Dillow
2007-08-04 3:44 ` Manu Abraham
2007-08-04 17:03 ` Evgeniy Polyakov
2007-08-04 0:41 ` Daniel Phillips
2007-08-04 16:44 ` Evgeniy Polyakov
2007-08-05 8:06 ` Daniel Phillips
2007-08-05 15:01 ` Evgeniy Polyakov
2007-08-05 21:35 ` Daniel Phillips
2007-08-06 8:28 ` Evgeniy Polyakov
[not found] ` <200708281027.59528.phillips@phunq.net>
[not found] ` <20070828175403.GA28440@2ka.mipt.ru>
[not found] ` <200708281408.06618.phillips@phunq.net>
2007-08-29 8:53 ` [1/1] Block device throttling [Re: Distributed storage.] Evgeniy Polyakov
2007-08-30 23:20 ` Daniel Phillips
2007-08-31 17:33 ` Evgeniy Polyakov
2007-08-31 21:41 ` Alasdair G Kergon
2007-09-02 4:42 ` Daniel Phillips
-- strict thread matches above, loose matches on Subject: below --
2008-08-27 16:07 Distributed STorage Evgeniy Polyakov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1a297b360708022204u4fc7603pb6baebe2bdf28618@mail.gmail.com \
--to=abraham.manu@gmail.com \
--cc=johnpol@2ka.mipt.ru \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).