SYSMAN> SET ENVIRONMENT/CLUSTER
  SYSMAN> IO REPLACE_WWID $2$MGA3/WWID=02000008:500E-09E0-0005-30D7
  SYSMAN> IO AUTOCONFIGURE

      In this example, the device named $2$MGA3 malfunctioned and
      was replaced while the system was down. Upon reboot, the drive
      did not get configured, because its new WWID did not match the
      WWID that OpenVMS expected. Therefore, the user redefines the
      devnam-WWID correlation and is then able to configure $2$MGA3
      correctly. The specified WWID comes from the output of the
      SYSMAN IO LIST_WWID command.