{"id":7035,"date":"2017-09-14T09:26:43","date_gmt":"2017-09-14T09:26:43","guid":{"rendered":"https:\/\/www.apen.es\/?page_id=7035"},"modified":"2025-07-14T10:49:57","modified_gmt":"2025-07-14T10:49:57","slug":"copia-de-seguretat","status":"publish","type":"page","link":"https:\/\/www.apen.es\/ca\/glosario-de-informatica\/copia-de-seguridad\/","title":{"rendered":"C\u00f2pia de seguretat"},"content":{"rendered":"<style>.kb-image7035_1b77e7-f1.kb-image-is-ratio-size, .kb-image7035_1b77e7-f1 .kb-image-is-ratio-size{max-width:400px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image7035_1b77e7-f1.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image7035_1b77e7-f1 .kb-image-is-ratio-size{align-self:unset;}.kb-image7035_1b77e7-f1 figure{max-width:400px;}.kb-image7035_1b77e7-f1 .image-is-svg, .kb-image7035_1b77e7-f1 .image-is-svg img{width:100%;}.kb-image7035_1b77e7-f1 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image7035_1b77e7-f1\"><figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"426\" src=\"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/09\/digital-storage-media-1443484_640.jpg\" alt=\"\" class=\"kb-img wp-image-7038\" srcset=\"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/09\/digital-storage-media-1443484_640.jpg 640w, https:\/\/www.apen.es\/wp-content\/uploads\/2017\/09\/digital-storage-media-1443484_640-300x200.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure><\/div>\n\n\n\n<p>La <strong>c\u00f2pia de seguretat<\/strong> \u00e9s el duplicat que es fa de la informaci\u00f3 m\u00e9s important que t\u00e9 l&#039;usuari com dades personals, documents importants, etc. I que serveix per guardar de forma segura tots els fitxers, sense risc que ens quedem sense ells en cas de perdre&#039;ls de l&#039;emmagatzematge del dispositiu original.<\/p>\n\n\n\n<p>El Backup o <strong>c\u00f2pia de seguretat<\/strong> ens permet mantenir els arxius m\u00e9s importants fora de perill en cas de p\u00e8rdua de documents, ciberatacs, virus inform\u00e0tics, accident dom\u00e8stic, etc.<\/p>\n\n\n\n<p>Gr\u00e0cies a la <strong>c\u00f2pia de seguretat<\/strong>, l&#039;usuari pot navegar de forma m\u00e9s segura i tranquil\u00b7la, sabent que tots els documents imprescindibles tenen un duplicat, que els permetr\u00e0 recuperar-los f\u00e0cilment en cas que perdin l&#039;arxiu original.<\/p>\n\n\n\n<p>La <strong>c\u00f2pia de seguretat<\/strong> no est\u00e0 enfocada a desar tots els fitxers que emmagatzemes al teu ordinador, sin\u00f3 que est\u00e0 dissenyada per fer <strong>c\u00f2pies de seguretat<\/strong> d&#039;aquells documents i fitxers m\u00e9s importants i imperdibles per a tu.<\/p>\n\n\n\n<p>La freq\u00fc\u00e8ncia aproximada amb qu\u00e8 has de fer aquestes c\u00f2pies dep\u00e8n del moviment d&#039;informaci\u00f3 que facis a l&#039;equip, \u00e9s a dir, si comptem amb un alt ritme d&#039;intercanvi d&#039;arxius haur\u00edem de fer aquestes c\u00f2pies de manera m\u00e9s freq\u00fcent, que si comptem amb pocs fitxers importants i no hi fem un gran moviment.<\/p>\n\n\n\n<p>Les <strong>c\u00f2pies de seguretat<\/strong> poden guardar-se tant a discos secundaris, al nostre propi ordinador, discs durs externs, claus USB, pen drive, CD, etc. El que hem de tenir en compte \u00e9s que si decidim fer la <strong>c\u00f2pia de seguretat<\/strong> al nostre propi ordinador \u00e9s recomanable fer una segona <strong>c\u00f2pia de seguretat<\/strong> en algun dispositiu extern, per no arriscar-nos a perdre els fitxers.<\/p>\n\n\n\n<p>Encara que s\u00ed que hi ha programes de recuperaci\u00f3 de dades, no s\u00f3n completament efectius i pot ser que no aconsegueixin solucionar el problema i l&#039;usuari perdi tots els fitxers i documents m\u00e9s importants.<\/p>\n\n\n\n<p>\u00c9s important que mentre fem les <strong>c\u00f2pies de seguretat<\/strong> no hi hagi documents i arxius en funcionament, ja que podem estar copiant fitxers que s&#039;estan executant o estan oberts i pot haver-hi riscos que no es copi\u00ef b\u00e9. Aix\u00f2 sol passar amb les bases de dades, per aix\u00f2 \u00e9s important que tots els fitxers estiguin tancats i no estiguis treballant amb ells en aquest moment.<\/p>\n\n\n\n<p>Per tal d&#039;optimitzar els processos de c\u00f2pia i l&#039;emmagatzematge de la <strong>c\u00f2pia de seguretat<\/strong>, es realitzen diferents manipulacions de les dades.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La compressi\u00f3; El millor m\u00e8tode per disminuir lespai de lemmagatzematge necessari i reduir, tamb\u00e9, el cost.<\/li>\n\n\n\n<li>Redund\u00e0ncia; Quan diversos sistemes guarden els seus <strong>c\u00f2pies de seguretat<\/strong> al mateix sistema d&#039;emmagatzematge hi ha la possibilitat de redund\u00e0ncia en les dades copiades.<\/li>\n\n\n\n<li>Desduplicaci\u00f3; Quan les <strong>c\u00f2pies de seguretat<\/strong> estan duplicades en un segon suport demmagatzematge. La desduplicaci\u00f3 ajuda a optimitzar velocitats, disposar d&#039;una segona c\u00f2pia fora de perill, etc.<\/li>\n\n\n\n<li>Xifrat; la capacitat dels suports demmagatzematge impliquen un alt risc de perdre o ser robats. Si es xifra la informaci\u00f3 es pot mitigar el problema, encara que t\u00e9 com a inconvenient que consumeix molt de temps de CPU i pot fer alentir la velocitat de copiat a m\u00e9s, la compressi\u00f3 una vegada xifrades les dades es torna menys efica\u00e7.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>La copia de seguridad es el duplicado que se hace de la informaci\u00f3n m\u00e1s importante que tiene el usuario tales como datos personales, documentos importantes, etc. Y que sirve para guardar de forma segura todos los archivos, sin riesgo de que nos quedemos sin ellos en caso de perderlos del almacenamiento del dispositivo original. El&#8230;<\/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-7035","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Copia de seguridad - Apen Inform\u00e1tica<\/title>\n<meta name=\"description\" content=\"\u00bfQue es una copia de seguridad? 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