ORA Database Error Messages ORA-16789: missing standby redo logs October 11, 2015 mpbod ORA-16789: missing standby redo logs Cause: Standby redo logs are missing and are needed for SYNC and ASYNC log transport modes. Action: Check the Data Guard documentation to see how to create standby redo logs. Back to previous menu Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)