Category: BTRFS
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"The Meta infrastructure is built completely on btrfs and its features. We have saved billions of dollars in infrastructure costs with the features and robustness of btrfs."
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Solution:
btrfs rescue zero-log /dev/nvme0n1p2
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A new backup tool. It provides many advantages compared to TimeShift such as:
- Snapshots compression with LZ4 or ZStd
- Deduplication
- Encryption
Caveat: It is not free …
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Even Bcachefs that is out like a year and not even that mature has better speeds … XFS was the fastest in almost every benchmark.
I am disappointed to say the least.
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a Windows driver for the next-generation Linux filesystem Btrfs.
“A reimplementation from scratch, it contains no code from the Linux kernel, and should work on any version from Windows XP onwards.”
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So this ZFS data corruption issue caused me being insecure about my data safety and to check my system for bit rot with btrfs scrubbing…
Scrub is a pass over all filesystem data and metadata and verifying the checksums. Basically, it reads all data on the disk, recomputes its checksum, and compares the recomputed checksum to the stored one. When the stored and recomputed checksums don’t match, the system knows there’s corruption.
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Btrfs scrub is a filesystem checking tool that reads all the data and metadata on the filesystem and uses checksums and the duplicate copies from RAID storage to identify and repair any corrupt data
To start a BTRFS scrub and to check the status of this process:
(1) # btrfs scrub start / (2) # btrfs scrub status /
https://www.phoronix.com/news/Btrfs-Linux-6.4-Better-Scrub
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