From f3622a1b1c76f7721aa565080159e4349bc61b70 Mon Sep 17 00:00:00 2001 From: Hans Elde Date: Wed, 8 Feb 2023 08:00:25 -0800 Subject: [PATCH] Fix the availability numbers (#3410) * Update 102-availability-in-numbers.md Updated downtime #s using https://uptime.is/ * Update src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md * Update src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md --------- Co-authored-by: Kamran Ahmed --- .../102-availability-in-numbers.md | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md b/src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md index 9bdb5c0cb..e2239af5b 100644 --- a/src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md +++ b/src/roadmaps/system-design/content/105-availability-patterns/102-availability-in-numbers.md @@ -7,10 +7,10 @@ Availability is often quantified by uptime (or downtime) as a percentage of time ``` Duration | Acceptable downtime ------------- | ------------- -Downtime per year | 8h 45min 57s -Downtime per month | 43m 49.7s +Downtime per year | 8h 41min 38s +Downtime per month | 43m 28s Downtime per week | 10m 4.8s -Downtime per day | 1m 26.4s +Downtime per day | 1m 26s ``` ## 99.99% Availability - Four 9s @@ -18,9 +18,9 @@ Downtime per day | 1m 26.4s ``` Duration | Acceptable downtime ------------- | ------------- -Downtime per year | 52min 35.7s -Downtime per month | 43m 49.7s -Downtime per week | 1m 5s +Downtime per year | 52min 9.8s +Downtime per month | 4m 21s +Downtime per week | 1m 0.5s Downtime per day | 8.6s ``` @@ -50,4 +50,5 @@ If both `Foo` and `Bar` each had 99.9% availability, their total availability in To learn more, visit the following links: -- [Availability in System Design](https://www.enjoyalgorithms.com/blog/availability-system-design-concept/) \ No newline at end of file +- [Availability in System Design](https://www.enjoyalgorithms.com/blog/availability-system-design-concept/) +- [Uptime calculator: How much downtime corresponds to 99.9 % uptime](https://uptime.is/)