{"id":1530,"date":"2021-05-17T10:38:16","date_gmt":"2021-05-17T08:38:16","guid":{"rendered":"https:\/\/devpath.pro\/?p=1530"},"modified":"2021-05-17T10:38:16","modified_gmt":"2021-05-17T08:38:16","slug":"save-yourself-from-a-disaster-9-disaster-recovery-plan","status":"publish","type":"post","link":"https:\/\/fabiocicerchia.it\/web\/save-yourself-from-a-disaster-9-disaster-recovery-plan","title":{"rendered":"Save yourself from a disaster #9: Disaster Recovery Plan"},"content":{"rendered":"<p style=\"text-align: center;\">This is the ninth part of the series <a href=\"https:\/\/devpath.pro\/web\/save-yourself-from-a-disaster-redundancy-on-a-budget\/\">Save yourself from a disaster: Redundancy on a budget<\/a>.<\/p>\n<p>How are you going to behave in the event of a disaster? You&#8217;ll start running around waving your hands up in the air?<\/p>\n<p>Ok, stop, breathe, and try to follow these advices.<\/p>\n<p><!--more--><\/p>\n<div style=\"border: 1px solid darkyellow; background: lightyellow; padding: 0.5em; line-height: 0.9em;\"><small><strong>Disclaimer<\/strong><br \/>\nThis guide won&#8217;t cover everything, it won&#8217;t be a comprehensive guide, and the steps that are shown need to be carefully reviewed and tested in your development\/pre-production environment. I don&#8217;t take any responsibility for any damage, interruption of service nor leak\/loss of data for the use of the instructions in the ebook (nor from any external website I&#8217;ve mentioned).<\/small><\/div>\n<h2>Plan Ahead<\/h2>\n<p>Try to answer, in an honest way, the following questions:<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">What are your weaknesses?<\/span><\/li>\n<li>What are your SPOF?<\/li>\n<li>What if the DNS provider will be down?\n<ul>\n<li>How do we switch name servers?<\/li>\n<\/ul>\n<\/li>\n<li>What will you do if your HDD will fail?<\/li>\n<li>What if you get a ransomware?\n<ul>\n<li><span style=\"font-weight: 400;\">How to make sure we don&#8217;t fall into a ransom?<\/span><\/li>\n<\/ul>\n<\/li>\n<li>What needs to be restored?<\/li>\n<li>Do we need to point the DB to a fallback node?<\/li>\n<li><span style=\"font-weight: 400;\">How do we restore the backups?<\/span>\n<ul>\n<li><span style=\"font-weight: 400;\">Where are the backups stored?<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Who can access them?<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-weight: 400;\">How to serve static content when everything is lost?<\/span><\/li>\n<\/ul>\n<p>These are just some questions in order to get your head around the Disaster Recovery Plan you&#8217;ll outline.<\/p>\n<h2>Possible Failures<\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Application<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Network<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Data Center<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Citywide<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Regional<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">National<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multinational<\/span><\/li>\n<\/ul>\n<h2>Outline<\/h2>\n<p>What are the RTO and RPO for your plan?<\/p>\n<ul>\n<li>RTO, Recovery Time Objective, it&#8217;s the time needed to bring the service back online before creating too much of an unacceptable disruption for your users.<\/li>\n<li>RPO, Recovery Point Objective, it&#8217;s the maximum amount of time allowed where the data is lost (a backup every hour has a RPO of 1h)<\/li>\n<\/ul>\n<hr \/>\n<p>The next post will be about Playing with Providers, Stay Tuned.<\/p>\n<p style=\"text-align: center; text-decoration: underline; color: darkblue; font-weight: bold;\">Check out the whole version of this post in the <a style=\"color: #000080; text-decoration: underline;\" href=\"https:\/\/leanpub.com\/savefromdisaster\">ebook.<br \/>\n<img decoding=\"async\" style=\"height: 100px;\" src=\"https:\/\/d2sofvawe08yqg.cloudfront.net\/savefromdisaster\/small\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is the ninth part of the series Save yourself from a disaster: Redundancy on a budget. How are you going to behave in the event of a disaster? You&#8217;ll start running around waving your hands up in the air? Ok, stop, breathe, and try to follow these advices.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[14],"tags":[122,123,124,125],"aioseo_notices":[],"author_meta":{"display_name":"fabio","author_link":"https:\/\/fabiocicerchia.it\/author\/fabio"},"featured_img":null,"coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/fabiocicerchia.it\/category\/web\" class=\"advgb-post-tax-term\">Web<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Web<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/fabiocicerchia.it\/category\/web\" class=\"advgb-post-tax-term\">disaster recovery<\/a>","<a href=\"https:\/\/fabiocicerchia.it\/category\/web\" class=\"advgb-post-tax-term\">ovh<\/a>","<a href=\"https:\/\/fabiocicerchia.it\/category\/web\" class=\"advgb-post-tax-term\">redundancy<\/a>","<a href=\"https:\/\/fabiocicerchia.it\/category\/web\" class=\"advgb-post-tax-term\">sbg2<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">disaster recovery<\/span>","<span class=\"advgb-post-tax-term\">ovh<\/span>","<span class=\"advgb-post-tax-term\">redundancy<\/span>","<span class=\"advgb-post-tax-term\">sbg2<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 3 years ago","modified":"Updated 3 years ago"},"absolute_dates":{"created":"Posted on May 17, 2021","modified":"Updated on May 17, 2021"},"absolute_dates_time":{"created":"Posted on May 17, 2021 10:38 am","modified":"Updated on May 17, 2021 10:38 am"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/posts\/1530"}],"collection":[{"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/comments?post=1530"}],"version-history":[{"count":0,"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/posts\/1530\/revisions"}],"wp:attachment":[{"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/media?parent=1530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/categories?post=1530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fabiocicerchia.it\/wp-json\/wp\/v2\/tags?post=1530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}