DB2® Advanced Copy Services (ACS) enables you to use the fast copying technology of a storage device to perform the data copying part of backup and restore operations.
In a traditional backup or restore operation, the database manager copies data to or from disk or a storage device using operating system calls. Being able to use the storage device to perform the data copying makes the backup and restore operations much faster. A backup operation that uses DB2 ACS is called a snapshot backup.
DB2 ACS interfaces with a storage solution, such as Tivoli Storage FlashCopy Manager which is bundled with DB2 starting in V10.1. For detailed instructions on the setup and usage of Tivoli Storage FlashCopy Manager, refer to the Tivoli® documentation at: https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Tivoli%20Storage%20FlashCopy%20Manager/page/Related%20Resources