This section enables you to manage Oracle Database and Oracle Grid Infrastructure diagnostic data and disk usage snapshots.

• Managing Automatic Diagnostic Repository Log and Trace Files
  Use the managelogs command to manage Automatic Diagnostic Repository log and trace files.
• Managing Disk Usage Snapshots
  Use tfactl commands to manage Oracle Trace File Analyzer disk usage snapshots.
• Purging Oracle Database and Oracle Grid Infrastructure Logs
  Use these tfactl commands to manage log file purge policy for Oracle Database and Oracle Grid Infrastructure logs.
• Securing Access to Diagnostic Collections
  Running tfactl commands is restricted to authorized users.