On Thu, Oct 22, 2020 at 08:42:08AM +0200, W.P. wrote: > Hi there, > > how to do "hot backup" (copying files) while database running? > > Not using pg_dump. > > Is there some equivalent of Oracle (I knew v8) "ALTER DATABASE BEGIN > BACKUP", which froze writes to database files, pushing everything to redo > files? There are many ways to do it. To be able to suggest proper solution we'd need to know: 1. what is the problem with pg_dump? 2. what is the exact problem you're solving (clearly it's not only "having backup", as this is done using pg_dump without any problem). depesz