Oracle Solution for Error ora-38855
ORA-38855: cannot mark instance string (redo thread string
) as enabledWhat triggered the Error:
The standby switchover or failover operation failed because it needs to mark an instance (redo thread) as enabled. However, it had less than 2 online redo logs, which prevented it from being enabled.What should we do to fix it:
Add more logfiles to the specified instance and retry the command.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board
