Add mention of pl/proxy toolset to docs.

diff --git a/doc/src/sgml/high-availability.sgml b/doc/src/sgml/high-availability.sgml
index 23e1b9d966e13ab9785e7804e14428aaea043ed7..05b72441570bd935b3d0c4eb783ab6defcd904ea 100644 (file)
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -1,4 +1,4 @@
-
+
 
 
  High Availability, Load Balancing, and Replication
@@ -106,7 +106,7 @@
   
 
   
-   File System Replication
+   File System (Block-Device) Replication
    
 
     
@@ -192,7 +192,8 @@ protocol to make nodes agree on a serializable transactional order.
      using two-phase commit (
      endterm="sql-prepare-transaction-title"> and 
      linkend="sql-commit-prepared" endterm="sql-commit-prepared-title">.
-     Pgpool and Sequoia are an example of this type of replication.
+     Pgpool and Sequoia are an example of this type of replication. 
+     This can be implemented using the PL/Proxy toolset as well.