{"id":8962,"date":"2018-03-01T13:52:11","date_gmt":"2018-03-01T12:52:11","guid":{"rendered":"http:\/\/arumel.com\/?p=8962"},"modified":"2018-03-01T13:52:11","modified_gmt":"2018-03-01T12:52:11","slug":"oracle-18c-zero-impact-patching-grid-infrastructure-clusterware-asm","status":"publish","type":"post","link":"https:\/\/arumel.com\/ca\/oracle-18c-zero-impact-patching-grid-infrastructure-clusterware-asm\/","title":{"rendered":"Oracle 18c – “Zero Impact Patching” para Grid Infrastructure (Clusterware + ASM)"},"content":{"rendered":"

Como es habitual, cada vez que aparece una nueva versi\u00f3n de Oracle, acudimos a las New Features<\/em> para buscar recopilar esas cosas que ech\u00e1bamos en falta y que por fin llegan.<\/p>\n

Con la llegada de 12c, vimos que Flex ASM nos aporta lo que su nombre ya parece querer indicar, flexibilidad a la hora de gestionar el acceso a ASM por parte de las instancias en un RAC. Dej\u00f3 de ser necesario que una instancia de base de datos tenga en su nodo local una instancia ASM arrancada para poder acceder al almacenamiento. As\u00ed, 12c empez\u00f3 a permitir que una instancia de base de datos sobreviva a la ca\u00edda de una instancia ASM (local o remota), manteniendo la actividad de sus sesiones de usuario, algo inviable en versiones anteriores. Tambi\u00e9n pudimos ver que, gracias al empleo de ACFS como sistema de almacenamiento, esta protecci\u00f3n es extensible a bases de datos en versi\u00f3n 11.2.0.4, como podemos ver en este art\u00edculo de Sergio Menoyo<\/a>.<\/p>\n

Oracle 18c anuncia mejoras en la alta disponibilidad RAC, introduciendo en la Grid Infrastructure la funcionalidad Zero Impact Patching<\/strong>. \u00bfQu\u00e9 aporta ZIP? La posibilidad de aplicar parches sobre la capa de Grid Infrastructure<\/strong> (Clusterware + ASM) en modo rolling upgrade<\/em> (con paradas individulaes de cada nodo en lugar de todo el cl\u00faster), pero manteniendo en ejecuci\u00f3n las instancias de base de datos<\/strong> y sin interrupci\u00f3n en las sesiones de usuario mientras se aplica el parche.<\/p>\n

Por lo de ahora no he encontrado mucha informaci\u00f3n t\u00e9cnica al respecto, ni siquiera en la gu\u00eda de instalaci\u00f3n \/ upgrade de GI 18<\/a>.Podemos ver informaci\u00f3n en el blog oficial de Oracle<\/a>, en esta presentaci\u00f3n en el Open World de 2017<\/a>, o en el White Paper de presentaci\u00f3n de Oracle 18<\/a>.De esta informaci\u00f3n sabemos que la actualizaci\u00f3n de la GI ser\u00e1 out-of-place<\/em> (nuevo GI_HOME completo aparte del existente, como ocurre con los Patch Sets desde 11gR2). El cambio implicar\u00e1 parar la capa GI antigua y arrancar la nueva, y en el proceso no se parar\u00e1n las instancias de base de datos. Interesante, especialmente si esta funcionalidad se puede extender m\u00e1s all\u00e1 de la aplicaci\u00f3n de parches, por ejemplo, permitiendo un reinicio de la capa de cl\u00faster sin paradas de las instancias de BD en cualquier otro momento. Veremos con la liberaci\u00f3n de la versi\u00f3n 18c on-premise<\/em> (en el momento de escribir esta entrada solo est\u00e1n disponibles las versiones Cloud<\/em> y Engineered Systems<\/em>) y con los primeros RURs las capacidades y posibilidades del ZIP.<\/p>\n","protected":false},"excerpt":{"rendered":"

Como es habitual, cada vez que aparece una nueva versi\u00f3n de Oracle, acudimos a las New Features para buscar recopilar esas cosas que ech\u00e1bamos en falta y que por fin llegan. Con la llegada de 12c, vimos que Flex ASM nos aporta lo que su nombre ya parece querer indicar, flexibilidad a la hora de […]<\/p>\n","protected":false},"author":3,"featured_media":8979,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[111,42,48],"tags":[],"class_list":["post-8962","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oracle-ca","category-portada-ca","category-slider-post-ca"],"yoast_head":"\nOracle 18c - "Zero Impact Patching" para Grid Infrastructure (Clusterware + ASM) - Arumel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/arumel.com\/ca\/oracle-18c-zero-impact-patching-grid-infrastructure-clusterware-asm\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle 18c - "Zero Impact Patching" para Grid Infrastructure (Clusterware + ASM) - Arumel\" \/>\n<meta property=\"og:description\" content=\"Como es habitual, cada vez que aparece una nueva versi\u00f3n de Oracle, acudimos a las New Features para buscar recopilar esas cosas que ech\u00e1bamos en falta y que por fin llegan. 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En nuestro caso se trataba de una versi\u00f3n 11.2 en standalone y el servidor hab\u00eda perdido\u2026","rel":"","context":"In "Oracle"","block_context":{"text":"Oracle","link":"https:\/\/arumel.com\/es\/oracle\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/arumel.com\/wp-content\/uploads\/2017\/07\/arumel_xenia.jpeg?fit=635%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/arumel.com\/wp-content\/uploads\/2017\/07\/arumel_xenia.jpeg?fit=635%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/arumel.com\/wp-content\/uploads\/2017\/07\/arumel_xenia.jpeg?fit=635%2C900&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":9759,"url":"https:\/\/arumel.com\/es\/recreando-la-gimr-en-oracle-19c-mgmtdb\/","url_meta":{"origin":8962,"position":5},"title":"Recreando la GIMR en Oracle 19c (MGMTDB)","author":"Carla Mu\u00f1oz L\u00f3pez","date":"9 September, 2019","format":false,"excerpt":" Realizando una tarea que consist\u00eda en cambiar el compatible.rdbms de los diskgroups de ASM a versi\u00f3n 18c me encontr\u00e9 que la GIMR se vi\u00f3 afectada, a pesar de ser la GI versi\u00f3n 19c. 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