February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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Defining timetables through RTO
Like RPO, RTO refers to a common business continuity term known as Recovery Time Objective. In practice, this is the amount of time an outage of the database layer may last. Often, it is incorporated into a Service Level Agreement (SLA) contract presented to clients or assumed as a metric within the application stack. Like RPO, this is a contractual-level element that can determine the number of required nodes at steadily increasing expense as the amount of tolerable downtime decreases.
In this recipe, we will examine the necessary steps to defining a realistic RTO, and what that could mean given known industry standards.
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