{"id":5987,"date":"2016-10-12T19:38:33","date_gmt":"2016-10-12T18:38:33","guid":{"rendered":"https:\/\/www.n-able.com\/?p=5987"},"modified":"2021-04-08T20:19:24","modified_gmt":"2021-04-08T19:19:24","slug":"backup-rule-3-simplifying-backup-and-dr-3-easy-steps","status":"publish","type":"post","link":"https:\/\/www.n-able.com\/fr\/blog\/backup-rule-3-simplifying-backup-and-dr-3-easy-steps","title":{"rendered":"Backup Rule of 3: Simplifying backup and DR in 3 easy steps"},"content":{"rendered":"<p><em>Your disaster recovery planning is overcomplicated.\u00a0<\/em>That\u2019s actually to be expected \u2013 you have many data sets of everything from a file, to an application, to an entire server, to all of your network\u2019s Tier 1 services, and each one requires handling a little differently when it comes to exactly how (and how quickly) you\u2019ll need to recover. And when you add in true business continuity \u2013 where the expectation is, in essence, to never be down \u2013 the plan changes completely to one that ensures services are available instead of recoverable.<\/p>\n<p>While there\u2019s no real way around the complexities that often come with the\u00a0<a href=\"https:\/\/www.solarwindsmsp.com\/products\/use-cases\/business-continuity-software\">business continuity<\/a>\u00a0and disaster recovery planning, you can avoid the associated failures that can accompany these kinds of plans using the\u00a0<em>backup rule of 3<\/em>. If you\u2019re not familiar with it, it acts as a guideline to define where a proper backup &#8211; regardless of the data set protected &#8211; should exist.<\/p>\n<p>The backup rule of three is simple enough \u2013 and you may already be following some or all of it:<\/p>\n<ul>\n<li><b>3 copies of your data<\/b><\/li>\n<\/ul>\n<p>The premise here is to ensure you have recoverability. For those of you no longer on tape, remember when tapes failed during a restore? That\u2019s what we\u2019re trying to avoid. Even with the redundancy built into some really sophisticated storage, in your time of need even an entire disk array can fail, making recovery impossible. So, the first part of the rule is to have three copies of a given data set you wish to protect.<\/p>\n<p>You already have the live copy of your data. The good news is that actually counts as one! Now you need two more copies. A great solution here is utilizing a hybrid-cloud backup and recovery solution that mirrors backups on-premises\u00a0<em>and in the cloud<\/em>, creating the two copies you need.<\/p>\n<p>Another method is to do continuous replication of a VM to an alternative site (which gives you 1 additional copy to the live server), and a backup of the VM image.<\/p>\n<p>There are lots of ways to get to three; the point is to make sure your backups are redundant.<\/p>\n<ul>\n<li><strong>2 Different Media\u00a0<\/strong><\/li>\n<\/ul>\n<p>This part of the rule is there to make sure you aren\u2019t defeating the first part by simply storing two copies together somewhere. Go back to my storage array example. Put two copies of a given backup on that same failing array, and you\u2019re out for the count. So, the point here is to make sure it\u2019s two\u00a0<em>different<\/em>\u00a0copies on completely different media. If you subscribe to either of the two examples above, you will have met this part of the rule without even trying.<\/p>\n<ul>\n<li><strong>1 Offsite Copy<\/strong><\/li>\n<\/ul>\n<p>This last part exists to ensure you can protect against a loss of an entire location. Say you\u2019re really fighting this whole \u201ccloud\u201d thing and meet parts 3 and 2 by making multiple backups on separate storage arrays in the same building. And then there\u2019s a massive fire. See what I mean? So part 1 keeps you in check, does sort of force you to use the cloud (or, at least a remote data center of some kind), but provides that needed layer of protection against\u00a0<em>any\u00a0<\/em>kind of loss.<\/p>\n<p>If you subscribe to either of the backup scenarios I previously mentioned, this last part of the rule is already met. If you don\u2019t, then looking into some way to maintain an\u00a0<a href=\"https:\/\/www.solarwindsmsp.com\/backup\/solution\/offsite\">offsite copy of backups<\/a>, VM images or even standby servers will get your organization closer to business continuity, rather than simply focusing on recovering a backup.<\/p>\n<h2>The Rule of 3: A Solid BC\/DR Foundation<\/h2>\n<p>Whether your organization\u2019s plans revolve around business continuity or disaster recovery planning, the backup rule of three cradles your plans safely in the knowledge that should anything else fail during a recovery scenario \u2013 whether it be the backup, the building or anything in between \u2013 you know you have another backup source from which to ensure the\u00a0business keeps running.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The backup rule of three is simple enough \u2013 it acts as a guideline to define where a proper backup should exist &#8211; and you may already be following some&#8230;<\/p>\n","protected":false},"author":51,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-5987","post","type-post","status-publish","format-standard","hentry","topic-msp-business"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - 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