3 ms·
You added a zero. There are ~8760 hours per year, so 8 hours is ~1 in 1000, 99.9%.
by Veserv 1y ago
You added a zero. There are ~8760 hours per year, so 8 hours is ~1 in 1000, 99.9%.
- markus_zhang 1y agoOh you are right!
- nine_k 1y agoAn outage like this does not happen every year, The last big outage happened in December 2021, roughly 3 years 10 month = 46 months ago. The duration of the outage in relation to that uptime is (8 h / 33602 h) * 100% = 0.024%, so the uptime is 99.976%, slightly worse than 99.99%, but clearly better than 99.90%. They used to be five nines, and people used to say that it's not worth the while to prepare for an outage. With less than four nines, the perception might shift, but likely not enough to induce a mass migration to outage-resistant designs.