snapraid ☆
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Description:
Backup program for disk arrays
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: backup raid data-recovery disk-array parity
Install: brew install snapraid
About:
SnapRAID is a backup program for disk arrays that stores parity information to recover from up to six disk failures. It operates primarily in a non-real-time fashion, calculating parity on a scheduled basis rather than continuously. This makes it ideal for large, mostly-static data collections where real-time synchronization is unnecessary.
Key Features:
  • Supports up to 6 parity disks for high fault tolerance
  • Allows mixing of different disk sizes
  • Provides file system-level deduplication and versioning
Use Cases:
  • Protecting large media libraries (photos, videos)
  • Backup for archival data that changes infrequently
  • Home server data protection
Alternatives:
  • ZFS – ZFS offers real-time protection and volume management but requires same-sized disks and lacks flexibility in adding drives easily.
  • MergerFS + SnapRAID – Often used together to combine SnapRAID's protection with flexible drive pooling.
Version History
Detected Version Rev Change Commit
Sep 13, 2024 10:58pm 0 VERSION_BUMP edece785
Jan 2, 2023 9:05am 0 VERSION_BUMP 6a52b0b0
Nov 23, 2022 7:04pm 0 VERSION_BUMP 139e7814
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