2012-11-26 - 11-27 11gR2 "Backup and Recovery User's Guide" page 443 - 484

Basic Concepts of Database Duplication



Active Database Duplication In active database duplication, RMAN connects as TARGET

to the source database instance and as AUXILIARY to the auxiliary instance. RMAN

copies the live source database over the network to the auxiliary instance, thereby

creating the duplicate database. No backups of the source database are required.

Figure 24–2 illustrates active database duplication.

-- 直接COPY LIVE SOURCE DATABASE 到 目标端



Backup-Based Duplication In backup-based duplication, RMAN creates the duplicate

database by using pre-existing RMAN backups and copies.

-- 基于已存在备份的DUPLICATE

Basic Concepts of Transportable Tablespace Sets -- 传输表空间