February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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How to do it...
When considering how many backups to allocate, follow the 3-2-1 backup rule, which consists of these elements:
- Keep at least three copies of your data.
- Store two copies on different devices.
- Keep at least one copy offsite.
Take note that many things may qualify as a copy, including PostgreSQL replicas, and the original data itself.
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