NOT ADEQUATELY TESTED
Please use for evaluation purposes only.
This fork avoids the following warning when a btrfs subvolume is set to data .
WARNING! UUID is unsupported for disks: 'd1', 'd2'. Not using inodes to detect move operations.
libuuid.so and uuid/uuid.h are required.
debian: apt install uuid-dev
RHEL: dnf install libuuid-devel
Executing state on a btrfs subvolume (directory) returns a device number that does not physically exist.
The original SnapRaid looks for the device number in /proc/self/mountinfo to get the UUID of the disk, but it does not exist.
Detail: https://lwn.net/Articles/866582/
This fork attempts to get the UUID of a btrfs subvolume when the UUID cannot be getted by the above method.
Only support Linux.
At least the following subcommands are still unavailable.
- down
- devices
- smart
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.
The official site of SnapRAID is:
http://www.snapraid.it/