-<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.117 2008/04/05 01:34:05 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/backup.sgml,v 2.118 2008/04/09 02:52:04 momjian Exp $ -->
<chapter id="backup">
<title>Backup and Restore</title>
not be possible to use snapshot backup because the snapshots
<emphasis>must</> be simultaneous.
Read your file system documentation very carefully before trusting
- to the consistent-snapshot technique in such situations. The safest
- approach is to shut down the database server for long enough to
- establish all the frozen snapshots.
+ to the consistent-snapshot technique in such situations.
+ </para>
+
+ <para>
+ If simultaneous snapshots are not possible, one option is to shut down
+ the database server long enough to establish all the frozen snapshots.
+ Another option is perform a continuous archiving base backup (<xref
+ linkend="backup-base-backup">) because such backups are immune to file
+ system changes during the backup. This requires enabling continuous
+ archiving just during the backup process; restore is done using
+ continuous archive recovery (<xref linkend="backup-pitr-recovery">).
</para>
<para>