parchive - a parity archive tool
PArchive does Reed-Soloman(?) style encoding of arbitrary files. A single input file is split into a number of output files. If only some of the outputs can be restored the original file can still be recovered.
This might have interesting applications in, for example, a distributed backup system, where some of your disks might die during the life of the backup. Or even for regular backups to CDs or DVDs, where a certain fraction of them may die over time.
posted Thu 26 Feb 2004 in /software/formats | link
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