RMAN Database Error Messages RMAN-12001: could not open channel string February 11, 2021 mpbod RMAN-12001: could not open channel string Cause: An ALLOCATE CHANNEL command could not be processed. Action: This message should be accompanied by other error messages indicating the cause of the error. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ 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)