Resolvendo ORA-00312 e ORA-00313 (Redolog)

SQL> startup
ORACLE instance started.

Total System Global Area  285212672 bytes
Fixed Size                  1267068 bytes
Variable Size              96471684 bytes
Database Buffers          184549376 bytes
Redo Buffers                2924544 bytes
Database mounted.
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: '/u02/oradata/SOAHOM/redo01.log'

SQL> shutdown immediate
SQL> startup mount
SQL> recover database until cancel;
SQL> alter database open resetlogs;