ORA-03113: end-of-file on communication channel Process ID: 194555 Session ID: 1537 Serial number: 3 ERROR: failed to establish dependency between database TEDAS and diskgroup resource ora.DATAC1.dg SQL> shu immediate; SQL> alter database nomount; SQL> alter database mount; SQL> select * from v$log; SQL> alter database clear unarchived logfile group 50; SQL> alter database clear unarchived […]