The attached patch mentions file system replication as a high
availability solution in the shared hardware section, and mentions DRBD
as a popular solution. Backpatched to 8.2.X.
--
Bruce Momjian bruce@momjian.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
Index: doc/src/sgml/high-availability.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/high-availability.sgml,v
retrieving revision 1.15
diff -c -c -r1.15 high-availability.sgml
*** doc/src/sgml/high-availability.sgml 1 Dec 2006 03:19:48 -0000 1.15
--- doc/src/sgml/high-availability.sgml 1 Feb 2007 21:00:35 -0000
***************
*** 99,108 ****
disk array fails or becomes corrupt, the primary and standby
servers are both nonfunctional. Another issue is that the
standby server should never access the shared storage while
! the primary server is running. It is also possible to use
! some type of file system mirroring to keep the standby server
! current, but the mirroring must be done in a way that ensures the
! standby server has a consistent copy of the file system.
</para>
<!--
--- 99,115 ----
disk array fails or becomes corrupt, the primary and standby
servers are both nonfunctional. Another issue is that the
standby server should never access the shared storage while
! the primary server is running.
! </para>
!
! <para>
! A modified version of shared hardware functionality is file system
! replication, where all changes to a file system are mirrored to a file
! system residing on another computer. The only restriction is that
! the mirroring must be done in a way that ensures the standby server
! has a consistent copy of the file system — specifically, writes
! to the standby must be done in the same order as those on the master.
! DRBD is a popular file system replication solution for Linux.
</para>
<!--