Tatsuo Ishii wrote:
> Bruce,
>
> In your document change which one can be placed on non-journalling
> file system? data? wal? or both?
Both. I have updated the docs to mention this, patch attached.
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
Index: doc/src/sgml/wal.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/wal.sgml,v
retrieving revision 1.55
diff -c -c -r1.55 wal.sgml
*** doc/src/sgml/wal.sgml 10 Dec 2008 11:05:49 -0000 1.55
--- doc/src/sgml/wal.sgml 18 Dec 2008 22:15:53 -0000
***************
*** 138,145 ****
<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
overhead can reduce performance, especially if journaling
causes file system <emphasis>data</emphasis> to be flushed
to disk. Fortunately, data flushing during journaling can
--- 138,145 ----
<tip>
<para>
Because <acronym>WAL</acronym> restores database file
! 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