Kent Overstreet publicou a vers\u00e3o 1.33.0 do sistema de arquivos Bcachefs. O lan\u00e7amento abrange dois pacotes: bcachefs-kernel-dkms com um m\u00f3dulo de kernel compilado usando o sistema DKMS (Dynamic Kernel Module Support), e bcachefs-tools com a ferramenta bcachefs, executada no espa\u00e7o do usu\u00e1rio, que implementa comandos para cria\u00e7\u00e3o (mkfs), montagem, recupera\u00e7\u00e3o e verifica\u00e7\u00e3o do sistema de arquivos. Os pacotes foram compilados para Debian, Ubuntu, Fedora, openSUSE, NixOS e Arch Linux. O m\u00f3dulo DKMS oferece suporte para kernels Linux a partir da vers\u00e3o 6.16. <\/p>\n
A nova vers\u00e3o inclui a funcionalidade \"reconcile\" (rebalance_v2), marcada como a maior mudan\u00e7a nos \u00faltimos dois anos no sistema de arquivos. Ao contr\u00e1rio do modo anterior \"rebalance\", o mecanismo \"reconcile\" permite realizar o reequil\u00edbrio n\u00e3o apenas de dados (por exemplo, replicando v\u00e1rias c\u00f3pias em diferentes dispositivos de armazenamento), mas tamb\u00e9m de metadados no sistema de arquivos (por exemplo, para transferir metadados ap\u00f3s a adi\u00e7\u00e3o de um novo dispositivo ao pool). Al\u00e9m disso, o reconcile agora \u00e9 aplic\u00e1vel a todas as op\u00e7\u00f5es de entrada\/sa\u00edda, e n\u00e3o apenas para opera\u00e7\u00f5es de c\u00f3pia em segundo plano e compress\u00e3o. No reconcile, tamb\u00e9m s\u00e3o automaticamente considerados as mudan\u00e7as nas op\u00e7\u00f5es ou configura\u00e7\u00f5es dos dispositivos, e os dados e metadados degradados s\u00e3o rapidamente re-replicados. <\/p>\n
O reconcile utiliza \u00edndices separados para: opera\u00e7\u00f5es de alta prioridade; otimiza\u00e7\u00e3o do processamento de dados em dispositivos de armazenamento; dados agendados para processamento que atualmente n\u00e3o podem ser executados (por exemplo, devido \u00e0 falta de espa\u00e7o). Foi adicionada a capacidade de criar um sistema de arquivos em um \u00fanico dispositivo no modo de replica\u00e7\u00e3o dupla (replicas=2) \u2014 nesta configura\u00e7\u00e3o, a adi\u00e7\u00e3o de um segundo dispositivo resultar\u00e1 na replica\u00e7\u00e3o autom\u00e1tica dos dados para o disco adicionado, sem necessidade de qualquer a\u00e7\u00e3o do usu\u00e1rio. <\/p>\n
Entre outras altera\u00e7\u00f5es: <\/p>\n
O projeto Bcachefs desenvolve um sistema de arquivos que visa combinar a funcionalidade avan\u00e7ada caracter\u00edstica do Btrfs e do ZFS com o n\u00edvel de desempenho, confiabilidade e escalabilidade t\u00edpico do XFS. O Bcachefs suporta recursos como a inclus\u00e3o de m\u00faltiplos dispositivos em uma \u00fanica parti\u00e7\u00e3o, layouts em camadas de armazenamento (com uma camada inferior com dados frequentemente utilizados em SSDs r\u00e1pidos e uma camada superior com dados menos requisitados em discos r\u00edgidos), replica\u00e7\u00e3o (RAID 1\/10), caching, compress\u00e3o de dados transparente (modos LZ4, gzip e ZSTD), snapshots, verifica\u00e7\u00e3o de integridade atrav\u00e9s de somas de verifica\u00e7\u00e3o, capacidade de armazenar c\u00f3digos de corre\u00e7\u00e3o de erros de Reed-Solomon (RAID 5\/6) e armazenamento de informa\u00e7\u00f5es em formato criptografado (utilizando ChaCha20 e Poly1305). Em termos de desempenho, o Bcachefs supera o Btrfs e outros sistemas de arquivos baseados no mecanismo Copy-on-Write, apresentando velocidade de opera\u00e7\u00e3o pr\u00f3xima ao Ext4 e XFS. \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 1.33.0. \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 \u0441 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u043e\u0439 \u0432 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0443\u0442\u0438\u043b\u0438\u0442\u043e\u0439 bcachefs, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u0439 \u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f (mkfs), \u043c\u043e\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0424\u0421. \u041f\u0430\u043a\u0435\u0442\u044b \u0441\u043e\u0431\u0440\u0430\u043d\u044b \u0434\u043b\u044f Debian, Ubuntu, Fedora, openSUSE, NixOS \u0438 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"