Michael Paquier schrieb am 04.12.2019 um 05:48: > On Tue, Dec 03, 2019 at 10:32:22PM +0000, Julie Nishimura wrote: >> Hello, what is the best way to migrate from PostgreSQL 8.3.11 on >> x86_64-redhat-linux-gnu to PostgreSQL 9.6.16 on x86_64-pc-linux-gnu >> server, with minimal downtime? >> The caveat is the source has about 80 databases overall almost 30 >> TB. I could migrate the smallest ones (up to 1 tb) using pg_dump and >> pg_restore, but the largest hot database is almost 17 tb, and I am >> not sure how to approach this effort in a better and efficient way? > > pg_upgrade could be one way to go here. That's not the scale pg_dump > would be very good at. But pg_upgrade only supports 8.4+ At least according to the manual.
