{"id":112173,"date":"2023-12-13T03:10:13","date_gmt":"2023-12-13T01:10:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej"},"modified":"2023-12-13T03:10:13","modified_gmt":"2023-12-13T01:10:13","slug":"opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/opublikovana-platforma-sef-dlya-programmno-upravlyaemyh-flash-nakopitelej","title":{"rendered":"Se ha publicado la plataforma SEF para unidades Flash controladas por software","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La organizaci\u00f3n Linux Foundation ha presentado la primera versi\u00f3n de una plataforma abierta para unidades Flash gestionadas por software SEF (Software Enabled Flash), basada en el c\u00f3digo proporcionado por la empresa KIOXIA (anteriormente Toshiba Memory Corporation), donde se invent\u00f3 la memoria Flash en 1980. Los textos fuente de las herramientas est\u00e1n escritos en lenguaje C y se distribuyen bajo la licencia BSD.    <\/p>\n<p>El conjunto de herramientas incluye un conjunto de parches para el n\u00facleo de Linux, un controlador de bloque para dispositivos SEF (Software Enabled Flash), utilidades de l\u00ednea de comando, controladores SEF paravirtualizados para QEMU, una biblioteca con API para el desarrollo de aplicaciones, parches para nvme-cli y FIO que a\u00f1aden soporte para SEF. El SDK tambi\u00e9n incluye una implementaci\u00f3n de referencia del nivel de software FTL (Flash Translation Layer), que garantiza la traducci\u00f3n de comandos de dispositivos de bloque en accesos a la realidad del chip de memoria Flash, la recolecci\u00f3n de basura y la distribuci\u00f3n de datos en las celdas de memoria. FTL implementa soporte para la colocaci\u00f3n flexible de datos (FDP \u2014 Flexible Data Placement), zonificaci\u00f3n (ZNS \u2014 Zoned Namespace) y la especificaci\u00f3n NVMe.        <\/p>\n<p>En las Flash convencionales para sistemas externos, la unidad act\u00faa como una caja negra, donde parte de la memoria se reserva para operaciones de servicio, los indicadores de rendimiento son inconstantes y surgen retrasos impredecibles debido a la actividad interna del controlador, como durante la gesti\u00f3n de basura. A diferencia de las unidades Flash tradicionales, donde la distribuci\u00f3n de datos, la aislaci\u00f3n de bloques defectuosos y la gesti\u00f3n de basura son manejadas por el firmware del controlador, las unidades con soporte SEF permiten mover la l\u00f3gica de trabajo de bajo nivel con el chip de memoria Flash al lado del software y del sistema operativo.     <\/p>\n<p>SEF ofrece la posibilidad de gestionar directamente la ubicaci\u00f3n f\u00edsica de los datos, cambiar los algoritmos de distribuci\u00f3n de carga, gestionar prioridades y QoS, eliminar una capa adicional de traducci\u00f3n de bloques, utilizar toda la memoria disponible, lograr un funcionamiento predecible con el almacenamiento y dividir el almacenamiento en dispositivos virtuales, aislados a nivel de entrada\/salida y con diferentes prioridades en el procesamiento. El enfoque propuesto en SEF permite reducir los gastos generales y mejorar la eficiencia de interacci\u00f3n con el almacenamiento adapt\u00e1ndose a las necesidades actuales de la l\u00f3gica de recolecci\u00f3n de basura, reserva de memoria y distribuci\u00f3n de bloques para reducir el desgaste.     <\/p>\n<p>Por ejemplo, SEF permite normalizar el rendimiento en condiciones de uso de un arreglo de dispositivos de almacenamiento adquiridos en diferentes momentos con caracter\u00edsticas distintas. Para los dispositivos de almacenamiento que se utilizan principalmente solo para lectura, gracias a SEF se pueden emplear algoritmos de distribuci\u00f3n de bloques m\u00e1s simples y reducir la memoria reservada para fines administrativos.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60278\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Linux Foundation \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 Flash-\u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0435\u0439 SEF (Software Enabled Flash), \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u0439 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0434\u0430, \u043f\u0435\u0440\u0435\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 KIOXIA (\u0434\u043e \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u044f Toshiba Memory Corporation), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432 1980 \u0433\u043e\u0434\u0443 \u0431\u044b\u043b\u0430 \u0438\u0437\u043e\u0431\u0440\u0435\u0442\u0435\u043d\u0430 Flash-\u043f\u0430\u043c\u044f\u0442\u044c. \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u044b \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u044e\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0432 \u0441\u0435\u0431\u044f \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0434\u043b\u044f [&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-112173","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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