The database cloning process creates an exact copy of a database to provide near-production data.
Tivoli® Storage FlashCopy® Manager uses
the FlashCopy or snapshot
function for database cloning. The following list identifies scenarios
when you might clone a database:
- To create a test system before you introduce, a new product release or new functions into a production environment.
- To create an education system from a master training system. You can reset the cloned database before you start a new course.
- To create a dedicated reporting system to offload the workload away from the production environment.
Traditionally, the database cloning process redirected a restore operation to create the clone. This method has various disadvantages, including system downtime and degraded system performance. Tivoli Storage FlashCopy Manager clones a database by using the storage system FlashCopy or snapshot capabilities to minimize the impact on the production database. A clone server or clone system is required by Tivoli Storage FlashCopy Manager to mount a cloned database.
The following figure shows how Tivoli Storage FlashCopy Manager creates
and stores a cloned database on a clone server.
Figure 1. Tivoli Storage FlashCopy Manager and
database cloning