A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures http://www.snapraid.it/
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.github/workflows Add ARM32 cross-build job to GitHub Actions 2026-08-21 12:06:26 +02:00
cmdline Optimize multi-parity recovery with fused syndrome generation 2026-08-24 11:57:04 +02:00
doc Sync rejects block ranges and always process full parity 2026-08-18 23:33:57 +02:00
LICENSES Update TommyDS to the new licensing format 2026-04-09 17:56:49 +02:00
m4 Modernize configure.ac 2026-08-18 23:33:52 +02:00
os Document Windows Ctrl-Break termination semantics in os_term() 2026-08-18 23:33:59 +02:00
pkg Remove ./configure warning about the unsupported --with-init-type option 2026-04-09 17:56:50 +02:00
raid Avoid UB in raid_gen memcpy when output aliases input with nd == 1 2026-08-24 21:53:07 +02:00
smhasher3 Add SMHasher3 adapters and validation results for SnapRAID hash functions 2026-08-18 23:33:58 +02:00
test Automatically exclude the snapshot .snapraid directory and content files 2026-08-18 23:33:53 +02:00
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HISTORY Add AArch32 (ARM32) NEON SIMD support for parity generation and recovery 2026-08-21 12:06:25 +02:00
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INSTALL.windows Documentation fixes 2025-10-26 18:02:58 +01:00
linux.cfg Update to the new RAID library 2026-08-18 23:33:56 +02:00
makearch.sh.in Remove curl fallback from packaging scripts and require local tarball 2026-08-18 23:33:57 +02:00
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makecheck.sh Rework makecheck and makedist 2026-03-19 11:26:25 +01:00
makecov.sh Fix Makefile target name from btrfscheck to snapcheck in makecov.sh 2026-08-18 23:33:57 +02:00
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Makefile.am Add ARM32 cross-build and QEMU user-mode testing 2026-08-21 12:06:25 +02:00
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makesan.sh Remove libblkid support and build dependency 2026-08-18 23:33:57 +02:00
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makeslackware.sh.in Remove curl fallback from packaging scripts and require local tarball 2026-08-18 23:33:57 +02:00
makesum.sh Sort checksums by version 2017-11-06 20:58:35 +01:00
makeuncrustify.sh Update to the new RAID library 2026-08-18 23:33:56 +02:00
makevalg.sh Rename maketest to makevalg 2026-03-19 11:56:22 +01:00
README Use the https site in the documentation 2025-10-27 22:50:25 +01:00
snapraid.conf.example Add support for custom smartctl info options using a [info: ...] tag 2026-08-18 23:33:54 +02:00
snapraid.conf.example.windows Add support for custom smartctl info options using a [info: ...] tag 2026-08-18 23:33:54 +02:00
TODO Add specialized P+Q REC2OF2 recovery to all SIMD backends 2026-08-24 17:39:29 +02:00
uncrustify.cfg Reformat the code with new uncrustify.cfg 2026-02-27 00:39:22 +01:00
valgrind.supp Add valgrind and ubsan suppressions 2025-10-27 18:39:58 +01:00

SnapRAID
========

SnapRAID is a backup program designed for disk arrays, storing
parity information for data recovery in the event of up to six
disk failures.

Primarily intended for home media centers with large,
infrequently changing files, SnapRAID offers several features:

* You can utilize disks already filled with files without the
  need to reformat them, accessing them as usual.
* All your data is hashed to ensure data integrity and prevent
  silent corruption.
* When the number of failed disks exceeds the parity count,
  data loss is confined to the affected disks; data on
  other disks remains accessible.
* If you accidentally delete files on a disk, recovery is
  possible.
* Disks can have different sizes.
* You can add disks at any time.
* SnapRAID doesn't lock in your data; you can stop using it
  anytime without reformatting or moving data.
* To access a file, only a single disk needs to spin, saving
  power and reducing noise.

For more information, please visit the official SnapRAID site:

    https://www.snapraid.it/