Why a transportable tablespace for the migration of the platform in the same endian format?

RDBMS version: 10.2.0.4

We intend to migrate our database to another platform. The two platforms are in BIG endian format. Search on Google, I came across the following link
http://levipereira.files.WordPress.com/2011/01/oracle_generic_migration_version_1.PDF

In this IBM paper, they migrate to AIX 6 of 5.9 on Solaris (SPARC). Both are BIG endian format. Since both are the same size endian can they use TRANSPORTABLE database? Why use RMAN COVERT DATAFILE (Transportable tablespace)?

In this IBM paper, they migrate to AIX 6 of 5.9 on Solaris (SPARC). Both are BIG endian format. Since both are the same size endian can they use TRANSPORTABLE database? Why use RMAN COVERT DATAFILE (Transportable tablespace)?

they use portable database - that they do not import data to the dictionary, not creating users--rather than use data conversion, they used convert datafile to avoid to convert all the data files (you will need to convert only cancel + system tablespace)-there are MOS Note: avoid Conversion Datafile during the transportable database [732053.1 ID].

Basic steps to convert database:
1. check the prerequisites
2. identify the directories and external files with DBMS_TDB. CHECK_EXTERNAL.
3. (coherent) stop and restart the database source in READ ONLY mode.
4. use DBMS_TDB. CHECK_DB to ensure that the database is ready to be transported.
5. run RMAN convert database command.
6 copy the files converted into the target database. Note that this implies that you will need 2 x the storage on the database source for converted files.
7 copy the parameter in the target database.
8. set the configuration files as required (setting, listener.ora and tnsnames, etc.).
9 start the new database!

All other details are:
http://docs.Oracle.com/CD/B19306_01/backup.102/b14191/dbxptrn.htm#CHDFHBFI

Lukas

Tags: Database

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