I want to clone my production database into my development server. Both are the same Oracle version but different OS versions (production on RedHat Advanced Server 4 and development on a Windows 2000 server). I have given the following commands: 
connect sys as sysdba

alter database backup controlfile to trace;

(So the trace file has been generated in production in the path defined by init.ora. I copied this trace file in my new development server.) Then I copied init.ora file in my development server and changed the parameter file as required. Now I have given following command at development server: 

connect sys as sysdba

SQL> startup nomount
ORACLE instance started.

Total System Global Area  562634272 bytes
Fixed Size                   454176 bytes
Variable Size             469762048 bytes
Database Buffers           83886080 bytes
Redo Buffers                8531968 bytes

SQL> CREATE CONTROLFILE set DATABASE "AUDB" RESETLOGS  ARCHIVELOG
  2      MAXLOGFILES 5
  3      MAXLOGMEMBERS 4
  4      MAXDATAFILES 150
  5      MAXINSTANCES 1
  6      MAXLOGHISTORY 226
  7  LOGFILE
  8    GROUP 1 (
  9      'D:oracleoradataaudblog1log1a.rdo',
10      'D:oracleoradataaudblog2log1b.rdo'
11    ) SIZE 30M,
12    GROUP 2 (
13      'D:oracleoradataaudblog1log2a.rdo',
14      'D:oracleoradataaudblog2log2b.rdo'
15    ) SIZE 30M,
16    GROUP 3 (
17      'D:oracleoradataaudblog1log3a.rdo',
18      'D:oracleoradataaudblog2log3b.rdo'
19    ) SIZE 30M
20  -- STANDBY LOGFILE
21  DATAFILE
22    'D:oracleoradataaudbdatasys.dbf',
23    'D:oracleoradataaudbdataundo01.dbf',
24    'D:oracleoradataaudbdatagoll01.dbf',
25    'D:oracleoradataaudbdataindex01.dbf'
26  CHARACTER SET WE8ISO8859P1
27  ;
CREATE CONTROLFILE set DATABASE "AUDB" RESETLOGS  ARCHIVELOG
*
ERROR at line 1:
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file 'D:oracleoradataaudbdatasys.dbf'
ORA-27046: file size is not a multiple of logical block size
OSD-04012: file size mismatch (OS 838868992)
I decreased my db_block_size parameter value but got the same error. Please help.

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Since the two servers are different OS platforms, you won't be able to copy your datafiles from the source server to the destination server. If you want to move data, you'll have to use either Transportable Tablespaces, the SQL*Plus COPY command, RMAN, or export/import to perform the move.

If you are not moving your datafiles at this time, you can remove the DATAFILE clause in your CREATE CONTROLFILE command.

This was first published in May 2007

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