Migrating a Database from ASM to Non-ASM Storage

Migrating a Database from ASM to Non-ASM Storage

Migrating a database back from ASM storage to non-ASM storage is similar to the

original migration to ASM. The general outline of the process can be based on the

steps in"Disk-Based Migration of a Database to ASM" on page 16-2. The primary

changes to these steps are to modify each step to reference file locations in non-ASM

storage. For example, the command that initially created the datafile backups in ASM

that become the live datafiles for the migrated database was:

BACKUP AS COPY INCREMENTAL LEVEL 0 DATABASE

FORMAT '+DISK' TAG 'ORA_ASM_MIGRATION';

You could use the following command to move them back:

BACKUP AS COPY INCREMENTAL LEVEL 0 DATABASE

FORMAT '/non-asm/df/%U’ TAG 'ORA_NON_ASM_MIGRATION';

Similar modifications can be applied to the other steps in the migration process and to

the PL/SQL scripts used during migration.