PostgreSQL: Documentation: devel: Chapter 28. Reliability and the Write-Ahead Log

September 4, 2025: PostgreSQL 18 RC 1 Released!

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Chapter 28. Reliability and the Write-Ahead Log
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Chapter 28. Reliability and the Write-Ahead Log

Table of Contents

28.1. Reliability

28.2. Data Checksums

28.2.1. Off-line Enabling of Checksums

28.3. Write-Ahead Logging (WAL)

28.4. Asynchronous Commit

28.5. WAL Configuration

28.6. WAL Internals

This chapter explains how to control the reliability of PostgreSQL, including details about the Write-Ahead Log.

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27.6. Monitoring Disk Usage	Home	28.1. Reliability