Setup of a new server in Barman

As mentioned in the “Design and architecture” section, we will use the following conventions:

• pg as server ID and host name where PostgreSQL is installed

• backup as host name where Barman is located

• barman as the user running Barman on the backup server (identified by the parameter barman_user in the configuration)

• postgres as the user running PostgreSQL on the pg server

Important

a server in Barman must refer to the same PostgreSQL instance for the whole backup and recoverability history (i.e. the same system identifier). This means that if you perform an upgrade of the instance (using for example `pg_upgrade` , you must not reuse the same server definition in Barman, rather use another one as they have nothing in common.