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| − | {{FormatInfo
| + | #REDIRECT [[Parity Volume Set]] |
| − | |formattype=electronic
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| − | |subcat=Miscellaneous File Formats
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| − | |extensions={{ext|par}}, {{ext|par2}}
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| − | |released=2001<ref>[https://sourceforge.net/projects/parchive/files/OldFiles/ parchive Files - SourceForge.net]</ref>
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| − | }}
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| − | '''Parchive''' (or Parity archive) is redundant file format, which provides a way to apply data-recovery capability concepts of RAID-like systems, via Reed-Solomon code to the posting and recovery of files. Historically, these were multi-part archives that was distributed in Usenet (a.k.a., "network news"), but can still be used in prevention of complete data loss during transit or storage. Parchive is like RAID for files instead of a whole file system.
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| − | The technology is based on a 'Reed-Solomon Code' implementation that allows for recovery of any 'X' real data-blocks for 'X' parity data-blocks present. (Data-blocks referring to files OR much smaller virtual slices of files).<ref>[https://parchive.sourceforge.net/ Parchive: Parity Archive Tool - SourceForge.net]</ref>
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| − | == Identification ==
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| − | A <code>PAR2</code> file begins with bytes {{magic|50 41 52 32 00 50 4b 54}}
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| − | == Examples ==
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| − | Create uniformed recovery file sizes with 100% redundancy for example.dwarfs
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| − | par2 create -u -r100 example.dwarfs
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| − | == Software ==
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| − | * Windows
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| − | ** [http://www.quickpar.org.uk/index.htm QuickPar]
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| − | ** [https://github.com/Yutaka-Sawada/MultiPar MultiPar]
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| − | * Mac
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| − | ** [https://gp.home.xs4all.nl/Site/MacPAR_deLuxe.html MacPAR deLuxe]
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| − | * Linux
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| − | ** [https://pypar2.fingelrest.net/ PyPar2]
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| − | ** [https://github.com/Parchive/par2cmdline par2cmdline]
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| − | == Links ==
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| − | * [[Wikipedia:Parchive|Wikipedia page]]
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| − | * [https://parchive.github.io/ Parchive project page on GitHub]
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| − | * [https://parchive.sourceforge.net/ Parchive project page on SourceForge.net (Legacy)]
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| − | == References ==
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| − | <references/>
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