ITSS 4370 Lecture Notes - Lecture 35: Data Center, Uptime, Devops

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Document Summary

Ups system failure (including ups and batteries) is #1 cause of data center outages 25% 49% of dos attacks caused a total or partial data center outage. Availability process of optimizing the readiness of production systems by analyzing and measuring outages. User wants application to always be available 100% of a time. More interested in how to restore than root cause. Will focus on methods to reduce the frequency and duration of outages. In the event of an outage, they will: Focus on restoring service as quickly as possible. Availability geared towards customers and pertains to entire system. Uptime geared toward suppliers, specific components of systems. Slow response cause of it performance problem or tuning issue. Down time involve one or more component failure. Availability focuses on reducing the frequency and duration of system outages. High availability focuses on eliminating system outages. Measure uptime in terms meaningful to users. Downtime of 2 hours is during important business days.

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