My upgrade is failing to start the sapsystem at the upgrade/switch phase
SYSTEM START failed, code -2
-2: the test rfc did not work.
Try to log on to the system with user DDIC.
i have tried to log in as ddic but its not running.am i supposed to start it manually or Sapup is supposed to do that.what could have gone wrong as the upgrade was running fine before this phase .
Any ideas appreciated