We went from 9.0 -> v15 in a single step. We used Londiste to do the replication. It’s older technology, but made upgrading in a single move possible. DB is +2TB. We had about 1 hr of downtime between final steps and validation of our applications.
Thanks,
Chris Hoover
Senior DBA
AWeber.com
Cell: (803) 528-2269
Email: chrish@aweber.com
On Feb 13, 2024, at 11:22 AM, Krishnaswamy <krishpostgresql@gmail.com> wrote:
Hi All
We have a postgreSQL db with version 9.6.9 version and planning to upgrade to latest postgresql 16 version.
Database size is around 4 TB .
Please suggest
1) options/methods to upgrade
2) best practices to note while doing this much major version upgrade
Thanks
Krishnaswamy