ORA-01157: cannot identify/lock data file 1 - see DBWR trace file

Hi Friends,

We are building a new system with production backup and doing system copy with backup restore method.

Restore is done using HP data protector after restore database is not opening

ORA-01157: cannot identify/lock data file 1 - see DBWR trace file

ORA-01110: data file 1: 'F:\ORACLE\SID\SAPDATA1\SYSTEM_1\SYSTEM.DATA1'

SYSTEM.DATA1 this data file is available at the required location

SQL> startup

ORACLE instance started.

Total System Global Area 8824815616 bytes

Fixed Size                  2227352 bytes

Variable Size            2664268648 bytes

Database Buffers         6157238272 bytes

Redo Buffers                1081344 bytes

Database mounted.

ORA-01589: must use RESETLOGS or NORESETLOGS option for database open

SQL> alter database open resetlogs;

alter database open resetlogs

*

ERROR at line 1:

ORA-01157: cannot identify/lock data file 1 - see DBWR trace file

ORA-01110: data file 1: 'F:\ORACLE\SID\SAPDATA1\SYSTEM_1\SYSTEM.DATA1'

Kindly help to resolve this issue.

Thanks

Tabrayz