[{"data":1,"prerenderedAt":71},["ShallowReactive",2],{"term-f\u002Ffive-nines":3,"related-f\u002Ffive-nines":58},{"id":4,"title":5,"acronym":6,"body":7,"category":40,"description":41,"difficulty":42,"extension":43,"letter":44,"meta":45,"navigation":46,"path":47,"related":48,"seo":52,"sitemap":53,"stem":56,"subcategory":6,"__hash__":57},"terms\u002Fterms\u002Ff\u002Ffive-nines.md","Five Nines",null,{"type":8,"value":9,"toc":33},"minimark",[10,15,19,23,26,30],[11,12,14],"h2",{"id":13},"eli5-the-vibe-check","ELI5 — The Vibe Check",[16,17,18],"p",{},"Five nines means 99.999% uptime — 5.26 minutes of allowed downtime per year. The SLA everyone promises and almost nobody hits. That's not 5 hours. Not 5 days. Five minutes and 15 seconds of downtime in 365 days. Achieving it requires redundant everything, multi-region failover, chaos engineering, and a team that treats an incident at 3am like a sporting event. It's the gold standard that separates serious infrastructure from everyone else.",[11,20,22],{"id":21},"real-talk","Real Talk",[16,24,25],{},"99.999% uptime (five nines) equates to 5.26 minutes downtime\u002Fyear, versus 99.9% (three nines) which allows 8.7 hours. Achieving five nines requires active-active multi-region architecture, sub-second failover, zero-downtime deploys, and continuous chaos testing. Major cloud providers (AWS, GCP, Azure) offer SLAs in the 99.9–99.99% range for individual services. True five nines typically requires multi-cloud or multi-provider strategies for critical paths.",[11,27,29],{"id":28},"when-youll-hear-this","When You'll Hear This",[16,31,32],{},"\"We're targeting five nines for the payments service. Everything else can be four nines.\" \u002F \"Five nines is a business requirement, not an engineering preference — price accordingly.\"",{"title":34,"searchDepth":35,"depth":35,"links":36},"",2,[37,38,39],{"id":13,"depth":35,"text":14},{"id":21,"depth":35,"text":22},{"id":28,"depth":35,"text":29},"backend","Five nines means 99.999% uptime — 5.26 minutes of allowed downtime per year. The SLA everyone promises and almost nobody hits.","intermediate","md","f",{},true,"\u002Fterms\u002Ff\u002Ffive-nines",[49,50,51],"SLA","Uptime","DevOps",{"title":5,"description":41},{"changefreq":54,"priority":55},"weekly",0.7,"terms\u002Ff\u002Ffive-nines","ZdprGRpe-rGlpG5WMWpY4PDW8YTiKsfqgboHTWapNg0",[59,64,68],{"title":51,"path":60,"acronym":6,"category":61,"difficulty":62,"description":63},"\u002Fterms\u002Fd\u002Fdevops","cicd","beginner","DevOps is the culture and practice of tearing down the wall between the people who write code (Dev) and the people who run it in production (Ops).",{"title":49,"path":65,"acronym":66,"category":61,"difficulty":42,"description":67},"\u002Fterms\u002Fs\u002Fsla","Service Level Agreement","An SLA is a contract between you and your users about how reliable your service will be. 'We promise the app will be up 99.9% of the time.",{"title":50,"path":69,"acronym":6,"category":61,"difficulty":62,"description":70},"\u002Fterms\u002Fu\u002Fuptime","Uptime is how long your service has been up and working without going down. It's usually expressed as a percentage like 99.9%. 'Three nines' (99.",1775560900197]