{"id":8307,"date":"2017-11-28T17:14:09","date_gmt":"2017-11-28T17:14:09","guid":{"rendered":"https:\/\/apen.onlinevalles.club\/?p=8307"},"modified":"2025-03-04T10:17:54","modified_gmt":"2025-03-04T10:17:54","slug":"la-regla-3-2-1-para-el-backup","status":"publish","type":"post","link":"https:\/\/apen.onlinevalles.club\/ca\/blog\/la-regla-3-2-1-para-el-backup\/","title":{"rendered":"La regla 3-2-1 per al backup"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Tots alguna vegada hem perdut algun fitxer, imatge o carpeta amb informaci\u00f3 important per culpa d&#039;errors humans, de maquinari, virus o cat\u00e0strofes. En aquest post&nbsp;<strong>Apen<\/strong>&nbsp;t&#039;explica com prevenir aquest tipus de situacions aplicant&nbsp;<strong>la regla 3-2-1<\/strong>, basada en realitzar&nbsp;<strong>3<\/strong>&nbsp;<strong>c\u00f2pies de les nostres dades en 2 suports diferents i allotjar-ne una d&#039;aquestes c\u00f2pies en 1 lloc f\u00edsic diferent<\/strong>.<br>&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3 c\u00f2pies de les vostres dades<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<br>Hem de crear&nbsp;<strong>3 c\u00f2pies de seguretat&nbsp;<\/strong>de les nostres dades sensibles, si \u00e9s possible di\u00e0riament. Amb 3 c\u00f2pies volem dir tenir el fitxer original m\u00e9s 2 backups. Amb nom\u00e9s 1 c\u00f2pia no \u00e9s suficient, ja que per raons de probabilitat a m\u00e9s c\u00f2pies, menys opcions de perdre els fitxers.<br>Suposarem que tenim les c\u00f2pies en 2 suports independents, el suport A i el suport B. Si cadascun t\u00e9 una probabilitat de fallada d&#039;1 de cada 100 vegades, la probabilitat que fallin tots dos simult\u00e0niament \u00e9s d&#039;1 cada 10.000 vegades. Si hi sumem un tercer suport (A+B+C), la probabilitat de fallada disminueix a 1 de cada 1.000.000 vegades.<br>&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2 suports diferents<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<br>\u00c9s molt important emmagatzemar les c\u00f2pies a&nbsp;<strong>2 suports diferents&nbsp;<\/strong>(disc local, disc de xarxa, USB, targeta SD, CD, DVD i\/o un altre suport) ja que cada suport t\u00e9 els seus pros i contres. Si tenim les 3 c\u00f2pies en dos suports iguals, pot ser que, en cas de fallada, el mateix error de funcionament afecti els dos dispositius per igual.<br>Per evitar-ho, la&nbsp;<strong>regla 3-2-1&nbsp;<\/strong>recomana desar c\u00f2pies de les nostres dades en almenys dos suports diferents: per exemple, un disc dur i un DVD. Aix\u00ed minimitzarem riscos.<br>&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1 c\u00f2pia de backup offsite<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<br>La tercera pe\u00e7a indispensable de la&nbsp;<strong>regla 3-2-1&nbsp;<\/strong>\u00e9s la separaci\u00f3 f\u00edsica de les dades, el que t\u00e8cnicament coneixem com a c\u00f2pia de backup offsite. Desar la tercera c\u00f2pia a&nbsp;<strong>1 edifici diferent&nbsp;<\/strong>\u00e9s una mesura molt important per evitar que, en cas de robatori, incendi o qualsevol altra cat\u00e0strofe, totes les dades es perdin.<br>En aquest sentit, una alternativa molt pr\u00e0ctica \u00e9s emmagatzemar la&nbsp;<strong>tercera c\u00f2pia al n\u00favol<\/strong>.<br>&nbsp;<br>Implantar i seguir la&nbsp;<strong>regla 3-2-1<\/strong>&nbsp;pot semblar complicat, per\u00f2 molt pitjor \u00e9s la p\u00e8rdua irremeiable de les dades importants de la nostra empresa.<\/p>","protected":false},"excerpt":{"rendered":"<p>Todos alguna vez hemos perdido alg\u00fan archivo, imagen o carpeta con informaci\u00f3n importante por culpa de errores humanos, de hardware,&#8230;<\/p>","protected":false},"author":4,"featured_media":8308,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","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":""},"categories":[47,149],"tags":[129,142,305],"class_list":["post-8307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apen","category-copia-de-seguridad","tag-apen","tag-copia-de-seguridad","tag-regla-3-2-1"],"acf":[],"taxonomy_info":{"category":[{"value":47,"label":"Apen"},{"value":149,"label":"Copia de seguridad"}],"post_tag":[{"value":129,"label":"Apen"},{"value":142,"label":"copia de seguridad"},{"value":305,"label":"regla 3-2-1"}]},"featured_image_src_large":["https:\/\/apen.onlinevalles.club\/wp-content\/uploads\/2017\/11\/321-post.png",850,401,false],"author_info":{"display_name":"marqueting","author_link":"https:\/\/apen.onlinevalles.club\/ca\/blog\/author\/marqueting\/"},"comment_info":0,"category_info":[{"term_id":47,"name":"Apen","slug":"apen","term_group":0,"term_taxonomy_id":47,"taxonomy":"category","description":"","parent":0,"count":251,"filter":"raw","term_order":"0","cat_ID":47,"category_count":251,"category_description":"","cat_name":"Apen","category_nicename":"apen","category_parent":0},{"term_id":149,"name":"Copia de seguridad","slug":"copia-de-seguridad","term_group":0,"term_taxonomy_id":149,"taxonomy":"category","description":"","parent":0,"count":18,"filter":"raw","term_order":"0","cat_ID":149,"category_count":18,"category_description":"","cat_name":"Copia de seguridad","category_nicename":"copia-de-seguridad","category_parent":0}],"tag_info":[{"term_id":129,"name":"Apen","slug":"apen","term_group":0,"term_taxonomy_id":129,"taxonomy":"post_tag","description":"","parent":0,"count":49,"filter":"raw","term_order":"0"},{"term_id":142,"name":"copia de seguridad","slug":"copia-de-seguridad","term_group":0,"term_taxonomy_id":142,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw","term_order":"0"},{"term_id":305,"name":"regla 3-2-1","slug":"regla-3-2-1","term_group":0,"term_taxonomy_id":305,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw","term_order":"0"}],"_links":{"self":[{"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/posts\/8307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/comments?post=8307"}],"version-history":[{"count":1,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/posts\/8307\/revisions"}],"predecessor-version":[{"id":54067,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/posts\/8307\/revisions\/54067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/media\/8308"}],"wp:attachment":[{"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/media?parent=8307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/categories?post=8307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/ca\/wp-json\/wp\/v2\/tags?post=8307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}