{"id":62238,"date":"2019-10-10T10:00:19","date_gmt":"2019-10-10T08:00:19","guid":{"rendered":"https:\/\/e3magpmp.greatsolution.dev\/?p=62238"},"modified":"2020-02-08T16:01:55","modified_gmt":"2020-02-08T15:01:55","slug":"lo-siento-nunca-mas","status":"publish","type":"post","link":"https:\/\/e3magpmp.greatsolution.dev\/es\/lo-siento-nunca-mas\/","title":{"rendered":"\u00a1Disculpe! Nunca m\u00e1s..."},"content":{"rendered":"<p>Mi mujer me recibe divertida en la puerta principal:<\/p>\n<p><em>\"\u00bfHas desquiciado al mundo? Mucha gente quiere contactar contigo en tu smartphone privado\".<\/em><\/p><div class=\"great-fullsize-content-es\" style=\"margin-left: auto;margin-right: auto;text-align: center;\" id=\"great-111973735\"><a href=\"https:\/\/e3magpmp.greatsolution.dev\/es\/kit-de-medios\/\" target=\"_blank\" aria-label=\"nl_werbung_800x100_es\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es.jpg\" alt=\"\"  srcset=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es.jpg 800w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-400x50.jpg 400w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-768x96.jpg 768w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-100x13.jpg 100w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-480x60.jpg 480w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-640x80.jpg 640w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-720x90.jpg 720w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-18x2.jpg 18w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100_es-600x75.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" width=\"1000\" height=\"100\"   \/><\/a><\/div><div class=\"great-fullsize-content-en\" id=\"great-2457379446\"><a href=\"https:\/\/e3magpmp.greatsolution.dev\/en\/media-kit\/\" target=\"_blank\" aria-label=\"nl_advertising_800x100\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100.jpg\" alt=\"\"  srcset=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100.jpg 800w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-400x50.jpg 400w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-768x96.jpg 768w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-100x13.jpg 100w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-480x60.jpg 480w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-640x80.jpg 640w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-720x90.jpg 720w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-18x2.jpg 18w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2024\/08\/nl_werbung_800x100-600x75.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" width=\"1000\" height=\"100\"   \/><\/a><\/div><div class=\"great-fullsize-content-de\" style=\"margin-bottom: 20px;margin-left: auto;margin-right: auto;text-align: center;\" id=\"great-2450648023\"><a href=\"https:\/\/e3magpmp.greatsolution.dev\/es\/steampunk-summit-2025\/\" target=\"_blank\" aria-label=\"steampunk_2024_1_800x100\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-scaled.jpg\" alt=\"\"  srcset=\"https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-scaled.jpg 1920w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-400x50.jpg 400w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-1200x150.jpg 1200w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-768x96.jpg 768w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-100x13.jpg 100w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-480x60.jpg 480w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-640x80.jpg 640w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-720x90.jpg 720w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-960x120.jpg 960w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-1168x146.jpg 1168w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-1440x180.jpg 1440w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-1536x192.jpg 1536w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-18x2.jpg 18w, https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2023\/12\/steampunk_2024_1_800x100-600x75.jpg 600w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" width=\"2560\" height=\"320\"   \/><\/a><\/div>\n<p>Le explico brevemente las circunstancias de mi infructuoso reportaje y al mismo tiempo ideo un plan para enmendarlo: invitar internamente a mi gente de base a comer en la cantina y organizar una teleconferencia con el redactor jefe F\u00e4rbinger y sus amigos.<\/p>\n<h3>Aqu\u00ed est\u00e1n los resultados:<\/h3>\n<p>Desde Hana 2 SPS3, la base de datos es compatible con la memoria persistente Optane DC de Intel. Intel y SAP desarrollaron juntos este concepto. Se argumenta que en un benchmark con memoria mixta -Dram (Dynamic Random Access Memory) y Persistent Memory (Optane o Pmem)- la puesta en marcha de Hana se acelera 12,5 veces.<\/p>\n<p>Es un orden de magnitud que tambi\u00e9n se corresponde con los resultados de los colegas de Evonik y Siemens presentados por Accenture. Hasta aqu\u00ed, todo bien.<\/p>\n<p>Pero, \u00bfson estos resultados relevantes y \u00fatiles? O, como me dijo el redactor jefe F\u00e4rbinger: \u00a1La soluci\u00f3n busca el problema! Toda teor\u00eda es gris, y al parecer esta de Accenture tambi\u00e9n lo es, porque como dijo un ex colega de SAP: Por defecto, las tablas se cargan desde el disco duro o SSD a la memoria la primera vez que se \"accede\" a ellas.<\/p>\n<p>El arranque de un Hana de 1 TB debe ser r\u00e1pido cuando no hay ning\u00fan usuario trabajando. V\u00e1lido s\u00f3lo para tablas de columnas, no de filas. Pero como el 99% de las tablas son almacenes de columnas, la afirmaci\u00f3n se aplica a toda la BD.<\/p>\n<p>Cada tabla tiene el par\u00e1metro IS_PRELOAD, que se establece en \"false\" por defecto. Esto significa que las tablas no se cargan en la memoria cuando se inicia Hana; esto s\u00f3lo ocurre cuando se accede a estas tablas.<\/p>\n<p>Hasta hace poco, se pod\u00eda controlar lo que se cargaba en la memoria de Hana por partici\u00f3n y columna. Desde SP4 y la Extensi\u00f3n de Almacenamiento Nativo, esto tambi\u00e9n es posible a nivel de p\u00e1gina. (Muchas gracias al ex-empleado de SAP que comprob\u00f3 todo en un servidor Hana real - \u00a1la experiencia pr\u00e1ctica gana a la teor\u00eda de Accenture aqu\u00ed! Leeremos mucho m\u00e1s de este experto en la revista E-3 en el futuro, como me dijo el redactor jefe F\u00e4rbinger por tel\u00e9fono).<\/p>\n<p>SAP ha confirmado ampliamente estos resultados:<\/p>\n<p><em>\"NVRam significa ram no vol\u00e1til o tambi\u00e9n memoria persistente [...] Con NVRam, el rendimiento de un reinicio es menor porque s\u00f3lo se accede a los datos cuando se utilizan\".<\/em><\/p>\n<p>Seg\u00fan declaraciones internas y externas, el futuro tama\u00f1o de la memoria de un servidor Hana podr\u00eda ser apasionante. Porque Optane, o como tambi\u00e9n dice Intel:<\/p>\n<p>Pmem\/NVRam, tiene una mayor densidad de empaquetamiento, la memoria de un servidor Hana puede incrementarse con cada intercambio de una barra de memoria Dram por Pmem.<\/p>\n<p>En Intel, encontramos fuentes que informaban de una proporci\u00f3n de uno a cuatro, lo que podr\u00eda suponer 4,5 TB por socket en un servidor de 4 sockets.<\/p>\n<p>Si se leen con atenci\u00f3n algunas de las notas de SAP, esta buena noticia se relativiza r\u00e1pidamente. Obviamente, debido a la arquitectura Hana, la proporci\u00f3n sigue siendo de uno a uno, como tambi\u00e9n confirman las fuentes de F\u00e4rbinger.<\/p>\n<p>Hubo un segundo \"intercambio de golpes\" entre SAP y nuestro panel virtual de expertos: en general, se criticaron las numerosas correcciones de errores y los paquetes de servicios.<\/p>\n<p><em>\"As\u00ed que mientras SAP lance un nuevo parche cada seis semanas y las recomendaciones para la configuraci\u00f3n de los par\u00e1metros cambien a\u00fan m\u00e1s a menudo...\"<\/em><\/p>\n<p>La respuesta de SAP:<\/p>\n<p><em>\"Tanto las actualizaciones como el reinicio son decisiones del cliente: la frecuencia de actualizaci\u00f3n es decisi\u00f3n exclusivamente suya. La mayor\u00eda de los par\u00e1metros de Hana pueden modificarse en l\u00ednea, sin reiniciar\".<\/em><\/p>\n<p>Muy divertido - todos nuestros expertos internos y externos estaban de acuerdo: \u00bfPor qu\u00e9 SAP publica un parche con una regularidad agradable, si no es para que los clientes lo apliquen para corregir los errores detectados que a veces falsifican el resultado de los c\u00e1lculos (\u00bfQui\u00e9n puede confiar en su sistema entonces?).<\/p>\n<p>Cuando el cliente actual eleva el problema al servicio de asistencia, lo primero que le dicen es: <em>\"\u00bfPor qu\u00e9 no lo arreglas al estado actual antes de que lo veamos?\"<\/em><\/p>\n<p>De todos modos, el Informe de Vigilancia Temprana lleva mucho tiempo mostrando aqu\u00ed luces \"rojas brillantes\", eso es lo que se supone que debo decirle a SAP a trav\u00e9s de mi columna.<\/p>","protected":false},"excerpt":{"rendered":"<p>Me equivoqu\u00e9 al informar sobre el inicio \"r\u00e1pido\" de una instancia de Hana. Pido disculpas por ello. Me precipit\u00e9 al creer un informe de Accenture. La situaci\u00f3n es demasiado compleja para un CIO.<\/p>","protected":false},"author":9,"featured_media":2461,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_lock_modified_date":false,"footnotes":""},"categories":[12,7,35911],"tags":[65,396,28477],"coauthors":[21816],"class_list":["post-62238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noname","category-meinung","category-mag-1909","tag-hana","tag-intel","tag-persistent-memory"],"featured_image_urls_v2":{"full":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"thumbnail":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-150x150.jpg",150,150,true],"medium":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",400,172,false],"medium_large":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-768x331.jpg",768,331,true],"large":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"image-100":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-100x43.jpg",100,43,true],"image-480":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-480x207.jpg",480,207,true],"image-640":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-640x276.jpg",640,276,true],"image-720":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-720x310.jpg",720,310,true],"image-960":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-960x414.jpg",960,414,true],"image-1168":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"image-1440":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"image-1920":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"1536x1536":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"2048x2048":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"trp-custom-language-flag":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",18,8,false],"bricks_large_16x9":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"bricks_large":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"bricks_large_square":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",1000,431,false],"bricks_medium":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",600,259,false],"bricks_medium_square":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName.jpg",600,259,false],"profile_24":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-24x24.jpg",24,24,true],"profile_48":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-48x48.jpg",48,48,true],"profile_96":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-96x96.jpg",96,96,true],"profile_150":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-150x150.jpg",150,150,true],"profile_300":["https:\/\/e3magpmp.greatsolution.dev\/wp-content\/uploads\/2016\/11\/NoName-300x300.jpg",300,300,true]},"post_excerpt_stackable_v2":"<p>Mit meiner Berichterstattung \u00fcber den \u201eschnellen\u201c Start einer Hana-Instanz habe ich danebengegriffen. Daf\u00fcr entschuldige ich mich! Ich habe einem Bericht von Accenture zu schnell geglaubt. Die Sachlage ist f\u00fcr einen CIO zu komplex.<\/p>\n","category_list_v2":"<a href=\"https:\/\/e3magpmp.greatsolution.dev\/es\/categoria\/opinion\/noname\/\" rel=\"category tag\">No\/Name - Kolumne<\/a>, <a href=\"https:\/\/e3magpmp.greatsolution.dev\/es\/categoria\/opinion\/\" rel=\"category tag\">Die Meinung der SAP-Community<\/a>, <a href=\"https:\/\/e3magpmp.greatsolution.dev\/es\/categoria\/mag-1909\/\" rel=\"category tag\">MAG 19-09<\/a>","author_info_v2":{"name":"no-name","url":"https:\/\/e3magpmp.greatsolution.dev\/es\/author\/no-name\/"},"comments_num_v2":"1 comentario","acf":[],"_links":{"self":[{"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/posts\/62238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/comments?post=62238"}],"version-history":[{"count":0,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/posts\/62238\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/media\/2461"}],"wp:attachment":[{"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/media?parent=62238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/categories?post=62238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/tags?post=62238"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/e3magpmp.greatsolution.dev\/es\/wp-json\/wp\/v2\/coauthors?post=62238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}