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Kent Overstreet, the creator of bcachefs, helps us understand where his new filesystem fits, what it\'s like to upstream a new filesystem, and how they\'ve solved the RAID write hole.

Special Guest: Kent Overstreet.

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Support LINUX Unplugged

Links:

• \\U0001f4a5 Gets Sats Quick and Easy with Strike\\n
• \\U0001f4fb LINUX Unplugged on Fountain.FM\\n
• Boltz — Privacy First, Non-Custodial Bitcoin Exchange.
• bcachefs — bcachefs is an advanced new filesystem for Linux, with an emphasis on reliability and robustness and the complete set of features one would expect from a modern filesystem.\\n
• bcachefs Erasure coding — Bcachefs takes advantage of the fact that it is already a copy-on-write filesystem. If we\'re designing our filesystem to avoid update-in-place, why would we do update-in-place in our RAID implementation?
• bcachefs Caching — bcachefs can be configured for writethrough, writeback, and writearound caching, as well as other more specialized setups.\\n\\n\\n
• bachefs Compression — Unlike other filesystems that typically do compression at the block level, bcachefs does compression at the extent level - variable size chunks, up to (by default) 128k.
• bcachefs Encryption — bcachefs uses AEAD style encryption (ChaCha20/Poly1305), where each encrypted block is authenticated with a MAC, with a chain of trust up to root (the superblock), and every encrypted block has a unique nonce.\\n
• bcachefs Snapshots — bcachefs provides Btrfs style writeable snapshots, at subvolume granularity.\\n
• (2015) [ANNOUNCE] bcachefs - a general purpose COW filesystem — It\'s taken a long time to get to this point - longer than I would have guessed if you\'d asked me back when we first started talking about it - but I\'m pretty damn proud of where it\'s at now.
• Kent Overstreet\'s Patreon\\n
• Unplugged Core Membership\\n
• Jupiter Signal PROMO 2024 — $3 off a month forever.\\n
• Webamp — Winamp 2 re-implemented for the browser.\\n
• Webamp on GitHub — Winamp 2 reimplemented for the browse.\\n
• The Official JB BBS! — vt52 hosts our new official JB BBS! `telnet http://pebkac.lol`