diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
new file mode 100644
index 62f72b4..c29fe82
*** a/doc/src/sgml/high-availability.sgml
--- b/doc/src/sgml/high-availability.sgml
*************** archive_cleanup_command = 'pg_archivecle
*** 738,750 ****
     </para>
  
     <para>
!     Streaming replication is asynchronous, so there is still a small delay
!     between committing a transaction in the primary and for the changes to
!     become visible in the standby. The delay is however much smaller than with
!     file-based log shipping, typically under one second assuming the standby
!     is powerful enough to keep up with the load. With streaming replication,
!     <varname>archive_timeout</> is not required to reduce the data loss
!     window.
     </para>
  
     <para>
--- 738,751 ----
     </para>
  
     <para>
!     Streaming replication is asynchronous by default
!     (see <xref linkend="synchronous-replication">), in which case there is
!     a small delay between committing a transaction in the primary and the
!     changes becoming visible in the standby. This delay is however much
!     smaller than with file-based log shipping, typically under one second
!     assuming the standby is powerful enough to keep up with the load. With
!     streaming replication, <varname>archive_timeout</> is not required to
!     reduce the data loss window.
     </para>
  
     <para>