PostgreSQL 15 Cleanup After Veeam Backup & Replication v13 Upgrade

Question

We are planning to upgrade Veeam Backup & Replication from v12 to v13, and I understand that PostgreSQL will be upgraded from version 15 to version 17 during the upgrade process.

After completing our validation, including backup and restore tests, we would like to uninstall PostgreSQL 15 from the VBR server.

Could anyone share the recommended procedure for safely removing PostgreSQL 15 after the upgrade? Are there any prerequisites or checks that should be performed before uninstalling it?

Thank you in advance for your help.

Iams3le · Accepted Answer

Hi ​@bf001,​@mkevenaarhas already answered an aspect of your question. If your goal is not to migrate but to upgrade, then you will find the below articles very useful.https://community.veeam.com/blogs-and-podcasts-57/upgrading-the-sql-database-engine-software-postgresql-used-by-veeam-backup-replication-9803https://community.veeam.com/blogs-and-podcasts-57/alternative-method-how-to-upgrade-postgresql-minor-version-used-by-veeam-backup-replication-10584

mkevenaar · Answer

Hi,Postgres will not be upgraded during the v12 to v13 upgrade. V13 will work with version 15.Upgrading postgres requires an database migration from the old version to the new version. I’ve found this gist on GitHub that explains the process. i haven’t tested ithttps://gist.github.com/truemogician/610300dd8e86f7a8ad01f73b9da1ff1aI would run the Postgres upgrade in an isolated environment or on a test server to understand the process.

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