Note: Do not issue a SETXCF command to force the rebuild of a structure into a coupling facility that is not available to the system. Do not issue the RVARY DATASHARE command when there is no coupling facility available. These actions cause the system to enter read-only mode. To exit read-only mode after an inappropriate SETXCF command, issue the RVARY DATASHARE command and RACF will use the original coupling facility. To exit read-only mode after an inappropriate RVARY DATASHARE command, or in other situations when no coupling facility is available, issue the RVARY NODATASHARE command.