pg_verify_checksums pg_verify_checksums 1 Application pg_verify_checksums verify data checksums in a PostgreSQL database cluster pg_verify_checksums option -D --pgdata datadir pg_verify_checksums verifies data checksums in a PostgreSQL cluster. The server must be shut down cleanly before running pg_verify_checksums. The exit status is zero if there are no checksum errors, otherwise nonzero. The following command-line options are available: -D directory --pgdata=directory Specifies the directory where the database cluster is stored. -v --verbose Enable verbose output. Lists all checked files. -r relfilenode Only validate checksums in the relation with specified relfilenode. -V --version Print the pg_verify_checksums version and exit. -? --help Show help about pg_verify_checksums command line arguments, and exit. PGDATA Specifies the directory where the database cluster is stored; can be overridden using the -D option.