{"id":3031,"date":"2011-04-15T08:02:48","date_gmt":"2011-04-14T22:02:48","guid":{"rendered":"http:\/\/nsrd.info\/blog\/?p=3031"},"modified":"2011-04-15T08:02:48","modified_gmt":"2011-04-14T22:02:48","slug":"no-zero-error-policy-no-backup-system","status":"publish","type":"post","link":"https:\/\/nsrd.info\/blog\/2011\/04\/15\/no-zero-error-policy-no-backup-system\/","title":{"rendered":"No Zero Error Policy? No backup system"},"content":{"rendered":"

In the past I’ve talked about the importance of having zero error policies.<\/p>\n

In “What is a zero error policy?<\/a>“, I said:<\/p>\n

Having a zero error policy requires the following three rules:<\/p>\n

1. All errors shall be known.<\/p>\n

2. All errors shall be resolved.<\/p>\n

3. No error shall be allowed to continue to occur indefinitely.<\/p><\/blockquote>\n

If you’ve not read that article, I suggest you go read it, as well as the follow-up article, “Zero error policy management<\/a>“.<\/p>\n

I’m going to make, and stand by, with fervid determination, the following assertion:<\/p>\n

If you do not have a zero-error policy for your backups, you do not have a valid backup system.<\/em><\/strong><\/p>\n

No<\/em> ifs, no<\/em> buts, no<\/em> maybes, no<\/em> exceptions.<\/p>\n

Why? Because<\/em> why. Because across all the sites I’ve seen, regardless of size, regardless of complexity, the only ones that actually work<\/em> properly are those where every error is captured, identified, and dealt with. Only those sites would I point at and say “They have every chance of meeting their SLAs”.<\/p>\n

In my book<\/a>, I introduce the notion that just deploying software and thinking you have a backup system is like making a sacrifice to a volcano. So, without a zero error policy, what does a network diagram of your IT environment look like?<\/p>\n

It looks like this:<\/p>\n

\"Network<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In the past I’ve talked about the importance of having zero error policies. In “What is a zero error policy?“,…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5,8,16],"tags":[146,370,1125,1127],"class_list":["post-3031","post","type-post","status-publish","format-standard","hentry","category-backup-theory","category-data-loss","category-networker","tag-backup-management","tag-errors","tag-zero-error","tag-zero-error-policy"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t