From time to time we see queries about best practice for PostgreSQL backups. I saw one just the other day. The first thing to note is that a backup strategy needs to be part of a more complete Disaster Recovery plan. This plan needs to identify what risks is is addressing, and how they are being mitigated. The DR plan should be regularly reviewed and tested with simulated disasters. One very well known organization I dealt with a few years ago had a variety of ways of testing their DR plan every few months, including deliberately taking down the network link between their two data center
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