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pg_upgrade: document use of file system and COW snapshots

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Bruce Momjian 2014-02-12 22:06:38 -05:00
parent 4a6f136c46
commit bcec58cf1e
1 changed files with 4 additions and 1 deletions
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doc/src/sgml/pgupgrade.sgml
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@ -569,7 +569,10 @@ psql --username postgres --file script.sql postgres
the old server and run <command>rsync</> again to update the copy with any the old server and run <command>rsync</> again to update the copy with any
changes to make it consistent. You might want to exclude some changes to make it consistent. You might want to exclude some
files, e.g. <filename>postmaster.pid</>, as documented in <xref files, e.g. <filename>postmaster.pid</>, as documented in <xref
linkend="backup-lowlevel-base-backup">. linkend="backup-lowlevel-base-backup">. If your file system supports
file system snapshots or copy-on-write file copying, you can use that
to make a backup of the old cluster, though the snapshot and copies
must be created simultaneously or while the database server is down.
</para> </para>
<refsect2> <refsect2>