EXPDP NONASM TO ASM

Question

Hi All,
I have to take export of full database and import to another database. source DB is having NONASM disks where as target is ASM what are the steps to
follow for full expdp impdp in such a scenario.
source db
1. expdp FULL=y option
Traget Server
2.Create tablespaces and users ? -- should i skip this step and go with only next step
3.impdp FULL=y with REMAP_DATAFILE --> '/ora01/dbname/tbs/prd/prod01.dbf':'+DATA/dbname/datafile/prod01.dbf'
I cant test this before the scheduled change time

Answer 1

SR.
I was really telling you that both would work and your results would be the same. I like both and her is the difference.
Your step 1: If you have lots of dataifles, say 200 or 2000, I would not want to have to type in 200 or 2000 remap datafiles. That is just me. Since you have only 19 I think typing in 19 remap_datafiles would be simple enough and I would probably use this step.
Your step 2: with my addition of creating a create tablespace sql file would be ideal if you lots of data files. SInce I'm lazy and want to use an editor, I would choose this step. This would take a total of 2 imports, some work in my favorite editor, then running the .sql script that I generated.
1 - import to sql file
2 - edit sql file to update the data files.
3 - run the sql file to create the tablespaces
4 - run the real import with exclude tablespace.
Since you only have 19 datafiles, I would probably just use step 1. I would generate a parameter fie and put all of the remap data parameters in the parameter file. It would look like:
import.par
remap_datafile=/old/directory/file1.dbf:+ASM/file1.dbf
remap_datafile=/old/directory/file2.dbf:+ASM/file2.dbf
remap_datafile=/old/directory/file3.dbf:+ASM/file3.dbf
remap_datafile=/old/directory/file4.dbf:+ASM/file4.dbf
etc
Then
impdp user/password directory=your_dir dumpfile=your_dump parameter_file=import.par ...
Hope this helps.
Dean