{"id":20383,"date":"2020-11-03T09:49:07","date_gmt":"2020-11-03T09:49:07","guid":{"rendered":"https:\/\/www.apen.es\/?page_id=20383"},"modified":"2025-07-14T11:20:17","modified_gmt":"2025-07-14T11:20:17","slug":"virtualitzacio","status":"publish","type":"page","link":"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/virtualitzacio\/","title":{"rendered":"Virtualitzaci\u00f3"},"content":{"rendered":"

QU\u00c8 \u00c9S LA VIRTUALITZACI\u00d3?<\/h2>\n\n\n
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La virtualitzaci\u00f3 \u00e9s una tecnologia que permet crear serveis de TI \u00fatils utilitzant recursos que tradicionalment estan vinculats al maquinari. Aix\u00f2 genera que es pugui aprofitar la capacitat total duna m\u00e0quina f\u00edsica distribuint les seves capacitats entre molts usuaris o entorns.<\/p>\n\n\n\n

En termes m\u00e9s pr\u00e0ctics, si teniu tres servidors f\u00edsics amb prop\u00f2sits individuals dedicats: un \u00e9s un servidor de correu, un altre \u00e9s un servidor web i l'\u00faltim executa aplicacions internes; cada servidor sutilitza aproximadament al 30% de la seva capacitat, nom\u00e9s una fracci\u00f3 del seu potencial de funcionament. At\u00e8s que les aplicacions continuen sent importants per a les seves operacions internes, les ha de conservar i el tercer servidor que les allotja.<\/p>\n\n\n\n

Davant d'aix\u00f2, era m\u00e9s f\u00e0cil i fiable executar tasques individuals a servidors individuals: 1 servidor, 1 sistema operatiu, 1 tasca. No va ser f\u00e0cil donar m\u00faltiples cervells a un servidor. Per\u00f2 amb la virtualitzaci\u00f3, podeu dividir el servidor de correu en 2 \u00fanics que poden manejar tasques independents perqu\u00e8 les aplicacions puguin migrar. \u00c9s el mateix maquinari, nom\u00e9s que utilitzeu m\u00e9s de manera m\u00e9s eficient.<\/p>\n\n\n\n

Si b\u00e9 la tecnologia de virtualitzaci\u00f3 es remunta a la d\u00e8cada de 1960, no es va adoptar \u00e0mpliament fins a principis de la d\u00e8cada de 2000. Les tecnologies que van permetre la virtualitzaci\u00f3<\/strong><\/a>, com els hipervisors, es van desenvolupar fa d\u00e8cades per brindar a diversos usuaris acc\u00e9s simultani a ordinadors que realitzaven processament per lots. El processament per lots era un estil inform\u00e0tic popular al sector empresarial que executava tasques rutin\u00e0ries milers de vegades amb molta rapidesa.<\/p>\n\n\n\n

Tot i aix\u00f2, la virtualitzaci\u00f3 no es va popularitzar sin\u00f3 fins al 1990 quan la majoria de les empreses tenien servidors f\u00edsics i piles de TI d'un sol prove\u00efdor, cosa que no permetia que les aplicacions heretades s'executessin al maquinari d'un prove\u00efdor diferent. A mesura que les empreses actualitzaven els seus entorns de TI amb servidors b\u00e0sics, sistemes operatius i aplicacions menys costosos duna varietat de prove\u00efdors, estaven obligades a utilitzar maquinari f\u00edsic infrautilitzat. Va arribar aleshores la necessitat de la virtualitzaci\u00f3.<\/p>\n\n\n\n

La virtualitzaci\u00f3 arribava llavors a resoldre dos grans problemes: les empreses podien dividir els seus servidors i executar aplicacions heretades en diversos tipus i versions de sistemes operatius, per la qual cosa els servidors van comen\u00e7ar a usar-se de manera m\u00e9s eficient, fet que va reduir els costos associats amb la compra, configuraci\u00f3, refredament i manteniment.<\/p>\n\n\n\n

La virtualitzaci\u00f3 tamb\u00e9 va ajudar a reduir la depend\u00e8ncia dels prove\u00efdors i la va convertir a la base del n\u00favol. Avui dia, \u00e9s tan com\u00fa a les empreses que sovint es necessita un programari dadministraci\u00f3 de virtualitzaci\u00f3 especialitzat per ajudar a fer un seguiment de tot.<\/p>\n\n\n\n

Hi ha diferents tipus de virtualitzaci\u00f3, per exemple la virtualitzaci\u00f3 de dades, on es distribueixen per diferents parts per consolidar una sola font. Aix\u00f2 permet que les empreses tractin les dades com un subministrament din\u00e0mic.<\/p>","protected":false},"excerpt":{"rendered":"

\u00bfQU\u00c9 ES LA VIRTUALIZACI\u00d3N? La virtualizaci\u00f3n es una tecnolog\u00eda que permite crear servicios de TI \u00fatiles utilizando recursos que tradicionalmente est\u00e1n vinculados al hardware. Esto genera que se pueda aprovechar la capacidad total de una m\u00e1quina f\u00edsica distribuyendo sus capacidades entre muchos usuarios o entornos. En t\u00e9rminos m\u00e1s pr\u00e1cticos, si tiene tres servidores f\u00edsicos con…<\/p>","protected":false},"author":4,"featured_media":0,"parent":6185,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-landing-glosario.php","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-20383","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nVirtualizaci\u00f3n - Apen Inform\u00e1tica<\/title>\n<meta name=\"description\" content=\"La virtualizaci\u00f3n es una tecnolog\u00eda que permite crear servicios de TI \u00fatiles utilizando recursos que tradicionalmente est\u00e1n vinculados al hardware.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/virtualitzacio\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Virtualizaci\u00f3n - 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