# Uptime: How Many 9s Do We Need? - **期号**: SRE Weekly Issue #20(2016-04-24) - **作者**: — - **链接**: https://dzone.com/articles/uptime-how-many-9s-do-we-need ## 简介 In practice, there’s a point of diminishing returns after which you’re wasting money to get more availability than you need. That’s at the crux of this article, and it’s an interesting read. ## 正文 > ⚠️ 抓取失败:HTTP 410