Scott Whitney-3 wrote > If it's "not production," (and I understand all the nuances of "sort of > production") why not just 9.3 both of them and use built-in replication? > What are you trying to accomplish that you feel Slony will do better? Ok, it's not for commercial use (no company loosing money if it fails), but i have to do this tasks and would like to have the database online as long as possible. - move the database to another system - reinstall the old system starting from scatch (ubuntu and all apps including postgresql/postgis) - upgrade from 9.1 to 9.3 my plan: install 9.3 on new system, move database using slony, reinstall new system with 9.3, move database back, keep slony alive for fallback. i will not upgrade the running server to 9.3 without fallback. ok, you say "do it without slony" than i have to install 9.1 on the new server, sync databases, rebuild old server with 9.1, resync back, upgrade new server to 9.3, upgrade backup-Server to 9.3 so i ask again: which version of slony should i use - if i do it with slony? Regards walter -- View this message in context: http://postgresql.1045698.n5.nabble.com/which-slony-to-start-tp5806072p5806085.html Sent from the PostgreSQL - admin mailing list archive at Nabble.com.