From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 18 Dec 2008 22:21:16 +0000 (+0000)
Subject: Clarify documentation that journaling is not required for WAL or data files.
X-Git-Tag: recoveryinfrav9~186
X-Git-Url: http://waps.l3s.uni-hannover.de/gitweb/?a=commitdiff_plain;h=fb2e7694af860583a90852e44774bf408793aa95;p=users%2Fsimon%2Fpostgres.git

Clarify documentation that journaling is not required for WAL or data files.
---

diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 15cd5baec3..64b76ae9d3 100644
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -138,8 +138,8 @@
    <tip>
     <para>
      Because <acronym>WAL</acronym> restores database file
-     contents after a crash, it is not necessary to use a
-     journaled filesystem for reliability.  In fact, journaling
+     contents after a crash, journaled filesystems are necessary for
+     reliable storage of the data files or WAL files.  In fact, journaling
      overhead can reduce performance, especially if journaling
      causes file system <emphasis>data</emphasis> to be flushed
      to disk.  Fortunately, data flushing during journaling can