ORA-00204: error in reading (block string, # blocks string) of control file
What triggered the Error:
A disk I/O failure was detected on reading the control file.What should we do to fix it:
Check if the disk is online, if it is not, bring it online and try a warm start again. If it is online, then you need to recover the disk.
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
