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Message-ID: <1a297b360708022204u4fc7603pb6baebe2bdf28618@mail.gmail.com> Date: Fri, 3 Aug 2007 09:04:51 +0400 From: "Manu Abraham" <abraham.manu@...il.com> To: "Evgeniy Polyakov" <johnpol@....mipt.ru> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: Distributed storage. On 7/31/07, Evgeniy Polyakov <johnpol@....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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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