<para>

Use checksums on data pages to help detect corruption by the

I/O system that would otherwise be silent. Enabling checksums

may incur anoticeable performance penalty. If set, checksums

might incur asmall performance penalty. If set, checksums

are calculated for all objects, in all databases. All checksum

failures will be reported in the

<link linkend="monitoring-pg-stat-database-view">