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pg_upgrade: document use of file system and COW snapshots

This commit is contained in:
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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5
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
changes to make it consistent. You might want to exclude some
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>
<refsect2>