Replicating data: DRBD, PostgreSQL and MariaDB

55 min Debian 12 Versions DRBD 9.2 (Debian 12, Rocky 9), PostgreSQL 15 (Debian 12), 16 (Ubuntu 24.04), 13-16 (Rocky 9), MariaDB 10.11 (Debian 12, Rocky 9)

Objective

A failover is useless if the standby server does not have the data. This lesson shows how to copy it continuously to a second server, at the disk level (DRBD) or the database level (PostgreSQL, MariaDB), and how to check that the copy keeps up.

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