{"id":182248,"date":"2026-06-20T14:48:05","date_gmt":"2026-06-20T12:48:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/fajlovaya-sistema-bcachefs-oficzialno-perestala-byt-eksperimentalnoj"},"modified":"2026-06-20T14:48:05","modified_gmt":"2026-06-20T12:48:06","slug":"fajlovaya-sistema-bcachefs-oficzialno-perestala-byt-eksperimentalnoj","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/fajlovaya-sistema-bcachefs-oficzialno-perestala-byt-eksperimentalnoj","title":{"rendered":"A Bcachefs f\u00e1jlrendszer hivatalosan megsz\u0171nt k\u00eds\u00e9rleti st\u00e1tusz\u00fa lenni.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Kent Overstreet k\u00f6zz\u00e9tette a Bcachefs 1.38.6 f\u00e1jlrendszer verzi\u00f3j\u00e1t, \u00e9s bejelentette a projekt hivatalos kivezet\u00e9s\u00e9t a k\u00eds\u00e9rleti fejleszt\u00e9s c\u00edmk\u00e9j\u00e9vel. Az ut\u00f3bbi id\u0151ben a be\u00e9rkez\u0151 probl\u00e9m\u00e1k sz\u00e1ma cs\u00f6kkent, \u00e9s a felmer\u00fcl\u0151 hib\u00e1k kev\u00e9sb\u00e9 s\u00falyosak \u00e9s bonyolultak.<\/p>\n<p>A kiad\u00e1s k\u00e9t csomagot \u00f6lel fel: a bcachefs-kernel-dkms-t, amely a DKMS (Dynamic Kernel Module Support) rendszer seg\u00edts\u00e9g\u00e9vel \u00f6sszegy\u0171jt\u00f6tt kernelmodult tartalmazza, valamint a bcachefs-tools-t, amely a felhaszn\u00e1l\u00f3i t\u00e9rben fut\u00f3 bcachefs seg\u00e9dprogramot tartalmazza, amely parancsokat val\u00f3s\u00edt meg a f\u00e1jlrendszer l\u00e9trehoz\u00e1s\u00e1hoz (mkfs), csatol\u00e1s\u00e1hoz, helyre\u00e1ll\u00edt\u00e1s\u00e1hoz \u00e9s ellen\u0151rz\u00e9s\u00e9hez. A csomagokat Debian, Ubuntu, Arch Linux sz\u00e1m\u00e1ra \u00e1ll\u00edtott\u00e1k \u00f6ssze, \u00e9s v\u00e1rhat\u00f3an Fedora, openSUSE \u00e9s NixOS sz\u00e1m\u00e1ra is k\u00e9sz\u00fclnek. A DKMS modul t\u00e1mogatja a Linux kernel 6.16-t\u00f3l kezd\u0151d\u0151 verzi\u00f3kat.<\/p>\n<p>B\u00e1r a verzi\u00f3sz\u00e1m nem t\u0171nik felt\u0171n\u0151nek, mivel a lemezes form\u00e1tumban nincs v\u00e1ltoz\u00e1s, az 1.38.6 kiad\u00e1s sz\u00e1mos komoly teljes\u00edtm\u00e9nyoptimaliz\u00e1l\u00e1st tartalmaz. A btree form\u00e1tum\u00fa strukt\u00far\u00e1k kezel\u00e9s\u00e9re, a napl\u00f3z\u00e1sra \u00e9s a f\u00e1jlrendszer m\u0171k\u00f6d\u00e9s\u00e9re szolg\u00e1l\u00f3 k\u00f3d k\u00f6r\u00fclbel\u00fcl 200 v\u00e1ltoztat\u00e1son ment kereszt\u00fcl, ami n\u00f6veli a teljes\u00edtm\u00e9nyt. A tranzakci\u00f3k meger\u0151s\u00edt\u00e9s\u00e9nek logik\u00e1ja 4K byte g\u00e9pk\u00f3dra lett t\u00f6m\u00f6r\u00edtve, optimaliz\u00e1l\u00e1sokat vezettek be, hogy elker\u00fclj\u00e9k a verseng\u0151 z\u00e1rol\u00e1sok (\"lock contention\") kialakul\u00e1s\u00e1t a btree kezel\u00e9sekor, \u00e9s teljesen megsz\u00fcntett\u00e9k a napl\u00f3\u00e1llapot ki\u00fcr\u00edt\u00e9s\u00e9nek (journal flush) z\u00e1rol\u00e1sait. <\/p>\n<p>Ezen <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/dts-dronten\/\" title=\"szerveren\" data-wpil-keyword-link=\"linked\">szerveren<\/a> 48-maggal rendelkez\u0151 AMD CPU-val a Bcachefs-n\u00e9l 16,5 GB\/sec teljes\u00edtm\u00e9nyt siker\u00fclt el\u00e9rni, amikor 48 dbench klienssel futott a teszt (\u00f6sszehasonl\u00edt\u00e1sk\u00e9ppen az XFS 16 GB\/sec eredm\u00e9nyt \u00e9rt el). Fel vannak k\u00e9sz\u00edtve, de a k\u00f6vetkez\u0151 kiad\u00e1sra elhalasztva v\u00e1rj\u00e1k a dbench tesztel\u00e9s\u00e9nek teljes\u00edtm\u00e9ny\u00e9t 19 GB\/sec-ra n\u00f6vel\u0151 jav\u00edt\u00e1sokat (ezek a jav\u00edt\u00e1sok tov\u00e1bbi tesztel\u00e9st vagy a lemezform\u00e1tum megv\u00e1ltoztat\u00e1s\u00e1t ig\u00e9nylik). A fio seg\u00e9dprogram haszn\u00e1lat\u00e1val a Bcachefs teljes\u00edtm\u00e9nye 700 m\u0171velet m\u00e1sodpercenk\u00e9nt volt, amikor v\u00e9letlenszer\u0171 \u00edr\u00e1si m\u0171veleteket hajtottak v\u00e9gre 4 kilob\u00e1jtos blokkokkal (az XFS ebben a tesztben egymilli\u00f3 m\u0171veletet mutatott m\u00e1sodpercenk\u00e9nt, azt is figyelembe v\u00e9ve, hogy az XFS blokkok \u00fajrap\u00e1ros\u00edt\u00e1s\u00e1val korl\u00e1toz\u00f3dik, m\u00edg a Bcachefs a CoW (Copy-on-Write) teljes ciklus\u00e1t kezeli ellen\u0151rz\u0151 \u00f6sszegek ellen\u0151rz\u00e9s\u00e9vel \u00e9s a btree strukt\u00fara friss\u00edt\u00e9s\u00e9vel). <\/p>\n<p>A Bcachefs 1.38.6 verzi\u00f3ban a f\u00e1jlrendszerekhez val\u00f3 csatlakoz\u00e1s t\u00e1mogat\u00e1sa 255 eszk\u00f6zig terjed. Az apt.bcachefs.org t\u00e1rol\u00f3ban elindult az Ubuntu 26.04-hez k\u00e9sz\u00fclt csomagok kialak\u00edt\u00e1sa. A folyamatos integr\u00e1ci\u00f3s \u00e9s automatiz\u00e1lt tesztel\u00e9si infrastrukt\u00fara \u00e1tker\u00fclt a DKMS-alap\u00fa build ellen\u0151rz\u00e9s\u00e9re. A k\u00f6vetkez\u0151 n\u00e9h\u00e1ny h\u00f3napban a f\u00e1jlrendszer t\u00f6bb t\u00e1rol\u00f3eszk\u00f6zzel val\u00f3 m\u0171k\u00f6d\u00e9s\u00e9nek optimaliz\u00e1l\u00e1s\u00e1ra k\u00edv\u00e1njuk \u00f6sszpontos\u00edtani.<\/p>\n<p>Ezen k\u00edv\u00fcl folytat\u00f3dik a k\u00f3d \u00fajra\u00edr\u00e1sa Rust nyelven. Megjegyzend\u0151, hogy a Rust t\u00e1mogat\u00e1s a kernelben m\u00e9rf\u00f6ldk\u0151h\u00f6z \u00e9rkezett - az \u00f6sszes jelent\u0151s disztrib\u00faci\u00f3 alap\u00e9rtelmez\u00e9s szerint aktiv\u00e1lta a CONFIG_RUST be\u00e1ll\u00edt\u00e1st a 7.0 kernel csomagok \u00e1t\u00e9p\u00edt\u00e9sekor a Rust t\u00e1mogat\u00e1s\u00e1val. A Rust-ra \u00edrt Bcachefs projektben m\u00e1r \u00e1t\u00edrt\u00e1k a seg\u00e9dprogramok k\u00e9szlet\u00e9t.<br \/>\nA bcachefs-tools, amely a felhaszn\u00e1l\u00f3i t\u00e9rben fut, API-kat val\u00f3s\u00edt meg a btree strukt\u00far\u00e1kkal val\u00f3 munk\u00e1ra. A k\u00f6vetkez\u0151 kiad\u00e1sban tervezik a Rust nyelv\u0171 \u00edr\u00f3t\u00f6mb\u00f6k integr\u00e1l\u00e1s\u00e1t a kernel DKMS modulj\u00e1ba, \u00e9s elkezd\u0151dik a Bcachefs alap k\u00f3dj\u00e1nak \u00e1t\u00edr\u00e1sa. Felt\u00e9telezik, hogy a Rust haszn\u00e1lata n\u00f6velni fogja a k\u00f3d rugalmass\u00e1g\u00e1t, stabilit\u00e1s\u00e1t \u00e9s haszn\u00e1lhat\u00f3s\u00e1g\u00e1t, \u00e9rdekesebb\u00e9 teszi a projektet a fiatal m\u00e9rn\u00f6k\u00f6k sz\u00e1m\u00e1ra, \u00e9s a j\u00f6v\u0151ben lehet\u0151v\u00e9 teszi a megb\u00edzhat\u00f3s\u00e1g form\u00e1lis ellen\u0151rz\u00e9s\u00e9nek megval\u00f3s\u00edt\u00e1s\u00e1t.<\/p>\n<p>A Bcachefs projekt a f\u00e1jlrendszert fejleszti, amely a Btrfs \u00e9s ZFS kiterjesztett funkci\u00f3inak kombin\u00e1l\u00e1s\u00e1t c\u00e9lozza meg, valamint az XFS-re jellemz\u0151 teljes\u00edtm\u00e9nyszintet, megb\u00edzhat\u00f3s\u00e1got \u00e9s sk\u00e1l\u00e1zhat\u00f3s\u00e1got. A Bcachefs t\u00e1mogatja az olyan lehet\u0151s\u00e9geket, mint t\u00f6bb eszk\u00f6z bevon\u00e1sa a part\u00edci\u00f3ba, r\u00e9teges t\u00e1rol\u00f3elrendez\u00e9sek (az als\u00f3 r\u00e9teg gyors SSD-n t\u00e1rolt gyakran haszn\u00e1lt adatokkal, m\u00edg a fels\u0151 r\u00e9teg merevlemezeken t\u00e1rolt kev\u00e9sb\u00e9 keresett adatokkal), replik\u00e1ci\u00f3 (RAID 1\/10), gyors\u00edt\u00f3t\u00e1raz\u00e1s, \u00e1tl\u00e1tsz\u00f3 adat t\u00f6m\u00f6r\u00edt\u00e9s (LZ4, gzip \u00e9s ZSTD m\u00f3dok), \u00e1llapotk\u00e9pek (snapshotok), integrit\u00e1s-ellen\u0151rz\u00e9s ellen\u0151rz\u0151 \u00f6sszegz\u00e9sekkel, hibajav\u00edt\u00f3 k\u00f3dok, az inform\u00e1ci\u00f3 titkos\u00edtva t\u00f6rt\u00e9n\u0151 t\u00e1rol\u00e1sa (ChaCha20 \u00e9s Poly1305 haszn\u00e1lat\u00e1val).<\/p>\n<p>A Bcachefs-hez az utols\u00f3 h\u00f3napokban hozz\u00e1adott jelent\u0151s \u00faj\u00edt\u00e1sok k\u00f6z\u00fcl eml\u00edt\u00e9st nyer:<\/p>\n<ul>\n<li class=\"l\"> A \"reconcile\" (rebalance_v2) mechanizmus, amely ellent\u00e9tben a \"rebalance\" m\u00f3ddal lehet\u0151v\u00e9 teszi nemcsak az adatok (p\u00e9ld\u00e1ul t\u00f6bb p\u00e9ld\u00e1ny m\u00e1sol\u00e1sa k\u00fcl\u00f6nb\u00f6z\u0151 t\u00e1rol\u00f3kra), hanem a f\u00e1jlrendszer metadat\u00e1inak \u00fajraeloszt\u00e1s\u00e1t is (p\u00e9ld\u00e1ul a metadata \u00e1tkonfigur\u00e1l\u00e1sa egy \u00faj t\u00e1rol\u00f3 hozz\u00e1ad\u00e1sa ut\u00e1n). A reconcile minden bemeneti\/kimeneti m\u0171veletre alkalmazhat\u00f3, nem csak a h\u00e1tt\u00e9rm\u00e1sol\u00e1si \u00e9s t\u00f6m\u00f6r\u00edt\u00e9si m\u0171veletekre. A reconcile automatikusan figyelembe veszi a k\u00e9sz\u00fcl\u00e9kek be\u00e1ll\u00edt\u00e1sainak v\u00e1ltoz\u00e1sait, \u00e9s azonnal \u00fajra m\u00e1solja a degrad\u00e1lt adatokat \u00e9s metadat\u00e1kat.\n<li class=\"l\"> Hib\u00e1sk\u00f3dok t\u00e1mogat\u00e1sa, amelyek lehet\u0151v\u00e9 teszik a s\u00e9r\u00fclt adatok helyre\u00e1ll\u00edt\u00e1s\u00e1t a RAID 5\/6 mint\u00e1j\u00e1ra. Az implement\u00e1ci\u00f3 Reed-Solomon k\u00f3dol\u00e1son alapul, amely ak\u00e1r N hib\u00e1t is k\u00e9pes jav\u00edtani a stripe-ban, ha N felesleges blokk \u00e1ll rendelkez\u00e9sre. Automatikus helyre\u00e1ll\u00edt\u00e1s biztos\u00edtott a degrad\u00e1lt stripe-ok eset\u00e9n. A helyre\u00e1ll\u00edt\u00f3 k\u00f3dok alkalmaz\u00e1s\u00e1nak lehet\u0151s\u00e9ge k\u00fcl\u00f6nb\u00f6z\u0151 m\u00e9ret\u0171 t\u00e1rol\u00f3k konfigur\u00e1ci\u00f3iban is \u00e9rv\u00e9nyes.\n<\/ul>\n<p>Forr\u00e1s: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65729\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet) \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0432\u044b\u043f\u0443\u0441\u043a \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Bcachefs 1.38.6 \u0438 \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e\u0431 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u043c \u0441\u043d\u044f\u0442\u0438\u0438 \u0441 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043c\u0435\u0442\u043a\u0438 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438. \u041f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0447\u0438\u0441\u043b\u043e \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0445 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u0445 \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u043b\u043e\u0441\u044c, \u0430 \u0432\u044b\u044f\u0432\u043b\u044f\u0435\u043c\u044b\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 \u0441\u0442\u0430\u043b\u0438 \u043c\u0435\u043d\u0435\u0435 \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u044b\u043c\u0438 \u0438 \u0437\u0430\u043c\u044b\u0441\u043b\u043e\u0432\u0430\u0442\u044b\u043c\u0438. \u0412\u044b\u043f\u0443\u0441\u043a \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u0434\u0432\u0430 \u043f\u0430\u043a\u0435\u0442\u0430: bcachefs-kernel-dkms \u0441 \u043c\u043e\u0434\u0443\u043b\u0435\u043c \u044f\u0434\u0440\u0430, \u0441\u043e\u0431\u0438\u0440\u0430\u0435\u043c\u044b\u043c \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b DKMS (Dynamic Kernel Module Support), \u0438 bcachefs-tools [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182248","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u0435\u043d\u0442 \u041e\u0432\u0435\u0440\u0441\u0442\u0440\u0438\u0442 (Kent Overstreet) 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