symform, a startup create 32 parity stipes of 64 original stripes, and distribute the fragments in different geographies. they call it, RAID-96 And apparently reed-solomon coded. http://www.symform.com/features-benefits.aspx thanks On Sat, Nov 28, 2009 at 9:18 PM, Kasper Sandberg <postmaster@xxxxxxxxxxx> wrote: > As far as i know, theres not support for this, however, i do believe > raid6 uses reed-solomon. > > On Sat, 2009-11-28 at 16:15 +0100, John Hendrikx wrote: >> I was wondering if there is support for a raid level where one can >> choose the redundancy level. Raid 5 allows for one redundant drive, >> Raid 6 for two, but there's no raid level that would support arbitrary >> redundancy (even to the point of allowing one to add extra redundancy >> later on, by simply putting spare drives to immediate use). >> >> I'm just a casual Software Raid user, and have been using Raid 6 for a >> small 8 TB array for a few years now and I realize that there's quite >> some CPU overhead involved for such redundancy, but for my purposes >> speed is not a relevant concern (10 MB/sec is enough). >> >> --John >> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html