On Fri, Nov 06, 2015 at 10:05:24PM +0100, Zdenek Kabelac wrote: > So how do you want to correctly 'restore' missing full sectors > with just 0.8% data overhead ?? We use interleaving. Each byte in a 4k block is part of a different Reed-Solomon block, which means an entire lost 4k data block looks like a single error. When we also spread the bytes that form a single Reed-Solomon block across the partition, we end up being able to correct several megabytes of consecutive corrupted blocks with very small space overhead. Sami -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
