{"id":152005,"date":"2025-12-18T23:11:55","date_gmt":"2025-12-18T21:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-openzfs-2-4-0-realizaczii-zfs-dlya-linux-i-freebsd"},"modified":"2025-12-18T23:11:55","modified_gmt":"2025-12-18T21:11:55","slug":"reliz-openzfs-2-4-0-realizaczii-zfs-dlya-linux-i-freebsd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/reliz-openzfs-2-4-0-realizaczii-zfs-dlya-linux-i-freebsd","title":{"rendered":"Lan\u00e7amento do OpenZFS 2.4.0, implementa\u00e7\u00f5es do ZFS para Linux e FreeBSD","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ap\u00f3s 11 meses de desenvolvimento, foi lan\u00e7ada a vers\u00e3o 2.4.0 do projeto OpenZFS, que desenvolve a implementa\u00e7\u00e3o do sistema de arquivos ZFS para Linux e FreeBSD. O projeto ficou conhecido como \"ZFS on Linux\" e anteriormente limitava-se ao desenvolvimento de um m\u00f3dulo para o n\u00facleo Linux, mas, ap\u00f3s a fus\u00e3o do c\u00f3digo do FreeBSD, foi reconhecido como a implementa\u00e7\u00e3o principal do OpenZFS e renomeado.     <\/p>\n<p>O OpenZFS foi testado com n\u00facleos Linux de 4.18 a 6.18 e todas as ramifica\u00e7\u00f5es do FreeBSD, come\u00e7ando pela vers\u00e3o 13.3. O c\u00f3digo \u00e9 distribu\u00eddo sob a licen\u00e7a CDDL. O OpenZFS j\u00e1 \u00e9 utilizado no FreeBSD e faz parte das distribui\u00e7\u00f5es Debian, Ubuntu, Gentoo, NixOS e ALT Linux. Pacotes com a nova vers\u00e3o ser\u00e3o preparados em breve para as principais distribui\u00e7\u00f5es Linux, incluindo Debian, Ubuntu, Fedora, RHEL\/CentOS.      <\/p>\n<p>O OpenZFS fornece uma implementa\u00e7\u00e3o dos componentes do ZFS, relacionados tanto ao funcionamento do sistema de arquivos quanto ao funcionamento do gerenciador de volumes. Est\u00e3o implementados os componentes: SPA (Storage Pool Allocator), DMU (Data Management Unit), ZVOL (ZFS Emulated Volume) e ZPL (ZFS POSIX Layer). O projeto tamb\u00e9m permite o uso do ZFS como backend para o sistema de arquivos em cluster Lustre. As contribui\u00e7\u00f5es do OpenZFS s\u00e3o baseadas no c\u00f3digo original do ZFS, importado do projeto OpenSolaris e ampliado com melhorias e corre\u00e7\u00f5es da comunidade Illumos. O projeto est\u00e1 em desenvolvimento com a participa\u00e7\u00e3o de funcion\u00e1rios do Laborat\u00f3rio Nacional de Livermore sob contrato com o Departamento de Energia dos EUA.    <\/p>\n<p>O c\u00f3digo \u00e9 distribu\u00eddo sob a licen\u00e7a free CDDL, que n\u00e3o \u00e9 compat\u00edvel com a GPLv2, o que impossibilita a integra\u00e7\u00e3o do OpenZFS na ramifica\u00e7\u00e3o principal do kernel Linux, uma vez que a mescla de c\u00f3digo sob as licen\u00e7as GPLv2 e CDDL n\u00e3o \u00e9 aceit\u00e1vel. Para contornar a incompatibilidade de licen\u00e7as, foi decidido distribuir o produto para Linux completamente sob a licen\u00e7a CDDL na forma de um m\u00f3dulo separado, fornecido independentemente do kernel. A estabilidade da base de c\u00f3digo do OpenZFS \u00e9 considerada compar\u00e1vel a outros sistemas de arquivos para Linux.     <\/p>\n<p>Principais mudan\u00e7as:  <\/p>\n<ul>\n<li class=\"l\"> Implementada a possibilidade de definir cotas padr\u00e3o para usu\u00e1rios, grupos e projetos. Nas vers\u00f5es anteriores, as cotas podiam ser configuradas apenas individualmente para cada identificador de usu\u00e1rio. Na nova vers\u00e3o, foi adicionada a possibilidade de definir um valor padr\u00e3o que ser\u00e1 aplicado se uma cota espec\u00edfica n\u00e3o for estabelecida para um usu\u00e1rio.\n<li class=\"l\"> Adicionada a capacidade de reverter o modo de entrada\/sa\u00edda direta (O_DIRECT, Direct I\/O) para o uso de um mecanismo leve de entrada\/sa\u00edda n\u00e3o armazenada em cache (Uncached I\/O) para solicita\u00e7\u00f5es que n\u00e3o est\u00e3o alinhadas com a fronteira da p\u00e1gina de mem\u00f3ria, n\u00e3o suportadas no Direct I\/O.\n<li class=\"l\"> Proposto um novo algoritmo unificado de limita\u00e7\u00e3o da taxa de opera\u00e7\u00f5es de grava\u00e7\u00e3o e aloca\u00e7\u00e3o de blocos, que reduz a fragmenta\u00e7\u00e3o do vdev (Dispositivo Virtual) por meio da agrega\u00e7\u00e3o de v\u00e1rias opera\u00e7\u00f5es de grava\u00e7\u00e3o e utilizando \u00e1reas livres cont\u00ednuas maiores em vez de alocar os resultados de opera\u00e7\u00f5es de grava\u00e7\u00e3o individuais em pequenas \u00e1reas livres.\n<li class=\"l\"> Aumentada o desempenho da criptografia com o uso de instru\u00e7\u00f5es AVX2 na implementa\u00e7\u00e3o do algoritmo AES-GCM. Nos testes realizados, a acelera\u00e7\u00e3o alcan\u00e7a 80%.\n<li class=\"l\"> Permitida a aloca\u00e7\u00e3o de blocos ZIL (ZFS Intent Log) n\u00e3o apenas em vdev normais ou em dispositivos SLOG dedicados, mas tamb\u00e9m em vdev especiais. Se um vdev normal estiver conectado a um disco r\u00edgido e um vdev especial a um SSD, essa mudan\u00e7a permite evitar situa\u00e7\u00f5es em que dados s\u00e3o gravados na SSD, enquanto os blocos ZIL associados s\u00e3o gravados no disco r\u00edgido, evitando assim atrasos desnecess\u00e1rios.\n<li class=\"l\"> Agora \u00e9 permitido definir a propriedade special_small_blocks para se\u00e7\u00f5es (ZVOL), e n\u00e3o apenas para sistemas de arquivos, permitindo organizar o armazenamento de pequenos blocos em um vdev especial separado, por exemplo, em um SSD.\n<li class=\"l\"> Adicionado o modo de reescrita \"zfs rewrite -P\", que, sempre que poss\u00edvel, mant\u00e9m inalterada a hora de cria\u00e7\u00e3o l\u00f3gica, permitindo diferenciar os blocos simplesmente movidos para o pool dos blocos realmente modificados pelo usu\u00e1rio.\n<li class=\"l\"> Para os comandos \"zpool trim\", \"zpool scrub\" e \"zpool initialize\", foi implementada a op\u00e7\u00e3o \"-a\" (\u2014all), permitindo que esses comandos sejam executados simultaneamente para todos os pools importados.\n<li class=\"l\"> Adicionado o comando \"zpool scrub -S -E\" para realizar a verifica\u00e7\u00e3o de somas de verifica\u00e7\u00e3o dos dados que se encaixam nos intervalos de tempo especificados.\n<li class=\"l\"> Novas otimiza\u00e7\u00f5es foram adicionadas ao processo de desduplica\u00e7\u00e3o.          <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64448\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 11 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 OpenZFS 2.4.0, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b ZFS \u0434\u043b\u044f Linux \u0438 FreeBSD. \u041f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u043b \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u043a\u0430\u043a &#171;ZFS on Linux&#187; \u0438 \u0440\u0430\u043d\u0435\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u043b\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u043c\u043e\u0434\u0443\u043b\u044f \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u043d\u043e \u043f\u043e\u0441\u043b\u0435 \u0441\u043b\u0438\u044f\u043d\u0438\u044f \u0441 \u043a\u043e\u0434\u043e\u043c \u0438\u0437 FreeBSD \u0431\u044b\u043b \u043f\u0440\u0438\u0437\u043d\u0430\u043d \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 OpenZFS \u0438 \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d. \u0420\u0430\u0431\u043e\u0442\u0430 OpenZFS \u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u0430 \u0441 \u044f\u0434\u0440\u0430\u043c\u0438 Linux c 4.18 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-152005","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=\"\u041f\u043e\u0441\u043b\u0435 11 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 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