{"id":2426,"date":"2011-10-26T15:13:24","date_gmt":"2011-10-26T15:13:24","guid":{"rendered":"http:\/\/megahost.ro\/blog\/?p=2426"},"modified":"2018-09-06T08:04:25","modified_gmt":"2018-09-06T08:04:25","slug":"server-dedicat-linux-exemple-comanda-dd","status":"publish","type":"post","link":"https:\/\/megahost.ro\/blog\/server-dedicat-linux-exemple-comanda-dd.html","title":{"rendered":"Server Dedicat Linux: exemple comanda &#8220;dd&#8221;"},"content":{"rendered":"<p>Pierderile de date sunt de obicei costisitoare si pot avea un impact financiar negativ asupra companiilor mari si\/sau mici. In anumite cazuri, pot duce chiar la pierderea locului de munca (de exemplu: un administrator al unui <a title=\"server dedicat\" href=\"https:\/\/megahost.ro\/servere-dedicate.php\">server<\/a> de hosting, din a cauri neglijenta clientii au pierdut date importante).<\/p>\n<p>Din fericire, sistemul de operare Linux ofera destul de multe variante prin care va puteti face copii de rezerva ale datelor.<\/p>\n<p>Una dintre cele mai folosite metode este utilizarea comenzii &#8220;<strong>dd<\/strong>&#8220;, insa trebuie sa aveti mare grija si sa stiti cu adevarat ceea ce faceti, utilizarea incorecta a acestei comenzi poate avea efecte dezastruoase!<\/p>\n<p>Pentru a face o copie a intregului hard disk al calculatorului sau serverului pe care ruleaza o distributie de Linux, ne folosim de comanda mai sus mentionata si anume &#8220;<strong>dd<\/strong>&#8220;:<\/p>\n<p><strong>#<\/strong> dd if=\/dev\/sda of=\/dev\/sdb, unde if (daca) reprezinta intrarea sau hardul sursa si of reprezinta destinatia. Cu alte cuvinte, o copie identica a partitiei \/dev\/sda se va regasi la final in \/dev\/sdb.<\/p>\n<p>In cazul in care exista erori, comanda de sus va esua. Pentru a evita acest lucru putem adauga la comanda de mai sus parametrul &#8220;conv = noerror&#8221;.<\/p>\n<p>Pentru a copia si sincroniza copia lui \/dev\/sda pe \/dev\/sdb vom utiliza tot comanda &#8220;<strong>dd<\/strong>&#8220;:<\/p>\n<p><strong>#<\/strong> dd if=\/dev\/sda of=\/dev\/sdb conv=noerror,sync<\/p>\n<p>Daca dorim sa creem o imagine a hard disk-ului pe care sa o utilizam mai tarziu sau sa o salvam pe un alt dispozitiv vom folosi de asemenea comanda &#8220;<strong>dd<\/strong>&#8220;:<\/p>\n<p><strong>#<\/strong> dd if=\/dev\/sda of = ~\/sdadisk.img (se salveaza o imagine a lui \/dev\/sda in fisierul sdadisk.img din home directory)<\/p>\n<p>Avem o imagine a hard disk-ului si dorim sa facem restore. Cum se poate face acest lucru?<\/p>\n<p><strong>#<\/strong> dd if=sdadisk.img a=\/dev\/sdb (se restaureaza imaginea sdadisk.img (copia lui \/dev\/sda) pe hardul \/dev\/sdb))<\/p>\n<p>Comanda dd se poate utiliza si pentru a face o copie a unei anumite partitii de pe hard.<\/p>\n<p><strong>#<\/strong> dd if=\/dev\/sda1 of ~\/partition1.img<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pentru a face o copie a intregului hard disk al calculatorului sau serverului pe care ruleaza o distributie de Linux, ne folosim de comanda mai sus mentionata si anume &#8220;dd&#8221;:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[184,6],"tags":[10,690],"class_list":["post-2426","post","type-post","status-publish","format-standard","hentry","category-server-dedicat","category-sisteme-operare","tag-linux","tag-server-dedicat"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"Pentru a face o copie a intregului hard disk al calculatorului sau serverului pe care ruleaza o distributie de Linux, ne folosim de comanda mai sus mentionata si anume &quot;dd&quot;:\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Istrator Admin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/megahost.ro\/blog\/server-dedicat-linux-exemple-comanda-dd.html\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.5\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Server Dedicat Linux: exemple comanda \"dd\" | megahost.ro","description":"Pentru a face o copie a intregului hard disk al calculatorului sau serverului pe care ruleaza o distributie de Linux, ne folosim de comanda mai sus mentionata si anume \"dd\":","canonical_url":"https:\/\/megahost.ro\/blog\/server-dedicat-linux-exemple-comanda-dd.html","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null},"aioseo_meta_data":{"post_id":"2426","title":"Server Dedicat Linux: exemple comanda &quot;dd&quot; | megahost.ro","description":"Pentru a face o copie a intregului hard disk al calculatorului sau serverului pe care ruleaza o distributie de Linux, ne folosim de comanda mai sus mentionata si anume &quot;dd&quot;:","keywords":[{"label":"server dedicat","value":"server dedicat"},{"label":"linux","value":"linux"}],"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"location":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2020-12-20 22:33:15","updated":"2025-06-04 01:16:45","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/megahost.ro\/blog\/\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/megahost.ro\/blog\/category\/sisteme-operare\" title=\"Sisteme de Operare\">Sisteme de Operare<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tServer Dedicat Linux: exemple comanda \u201cdd\u201d\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/megahost.ro\/blog\/"},{"label":"Sisteme de Operare","link":"https:\/\/megahost.ro\/blog\/category\/sisteme-operare"},{"label":"Server Dedicat Linux: exemple comanda &#8220;dd&#8221;","link":"https:\/\/megahost.ro\/blog\/server-dedicat-linux-exemple-comanda-dd.html"}],"_links":{"self":[{"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/posts\/2426","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/comments?post=2426"}],"version-history":[{"count":0,"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/posts\/2426\/revisions"}],"wp:attachment":[{"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/media?parent=2426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/categories?post=2426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/megahost.ro\/blog\/wp-json\/wp\/v2\/tags?post=2426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}