Snapraid

File-level Backup/RAID program for disk arrays

SnapRAID is a backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures. SnapRAID is mainly targeted for a home media center, where you have a lot of big files that rarely change. Beside the ability to recover from disk failures, the other features of SnapRAID are

• You can use disk already filled with files, without the need to reformat them. You will access them like now.
• All your data is hashed to ensure data integrity and to avoid silent corruption.
• If the failed disks are too many to allow a recovery, you lose the data only on the failed disks. All the data in the other disks is safe.
• If you accidentally delete some files in a disk, you can recover them.
• The disks can have different sizes.
• You can add disks at any time.
• It doesn’t lock-in your data. You can stop using SnapRAID at any time without the need to reformat or move data.
• To access a file, only a single disk needs to spin, saving power and producing less noise.