{"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\/en\/blog\/la-regla-3-2-1-para-el-backup\/","title":{"rendered":"The 3-2-1 rule for backup"},"content":{"rendered":"

We've all lost a file, image, or folder containing important information at some point due to human error, hardware failure, viruses, or natural disasters. In this post Apen<\/strong> It explains how to prevent these types of situations by applying the 3-2-1 rule<\/strong>, based on performing 3<\/strong> copies of our data on 2 different media and store one of these copies in 1 different physical location<\/strong>.
 <\/p>\n\n\n\n

3 copies of your data<\/strong><\/h2>\n\n\n\n

 
We need to create 3 backups <\/strong>of our sensitive data, ideally daily. By 3 copies we mean having the original file plus 2 backups. Just 1 copy is not enough, because, statistically speaking, more copies mean less chance of losing your files.
Let's assume we have the copies on two separate media, media A and media B. If each of them has a probability of failure of 1 in 100 times, the probability of both failing simultaneously is 1 in 10,000 times. If we add a third media (A+B+C), the probability of failure decreases to 1 in 1,000,000 times.
 <\/p>\n\n\n\n

2 different supports<\/strong><\/h2>\n\n\n\n

 
It is very important to store the copies in 2 different supports <\/strong>(local disk, network disk, USB, SD card, CD, DVD, and\/or other media) since each medium has its advantages and disadvantages. If we have the 3 copies on two identical media, it's possible that, in case of failure, the same malfunction will affect both devices equally.
To avoid this, the rule 3-2-1 <\/strong>It is recommended to keep copies of your data on at least two different media: for example, a hard drive and a DVD. This will minimize risks.
 <\/p>\n\n\n\n

1 offsite backup copy<\/strong><\/h2>\n\n\n\n

 
The third indispensable piece of the rule 3-2-1 <\/strong>It's the physical separation of the data, what we technically call an offsite backup. Save the third copy in 1 different building <\/strong>It is a very important measure to prevent all data from being lost in case of theft, fire or any other catastrophe.
In this sense, a very practical alternative is to store the third copy in the cloud<\/strong>.
 
Implement and monitor the rule 3-2-1<\/strong> It may seem complicated, but much worse is the irreparable loss of our company's important data.<\/p>","protected":false},"excerpt":{"rendered":"

Todos alguna vez hemos perdido alg\u00fan archivo, imagen o carpeta con informaci\u00f3n importante por culpa de errores humanos, de hardware,…<\/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\/en\/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\/en\/wp-json\/wp\/v2\/posts\/8307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/comments?post=8307"}],"version-history":[{"count":1,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/posts\/8307\/revisions"}],"predecessor-version":[{"id":54067,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/posts\/8307\/revisions\/54067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/media\/8308"}],"wp:attachment":[{"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/media?parent=8307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/categories?post=8307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apen.onlinevalles.club\/en\/wp-json\/wp\/v2\/tags?post=8307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}