Before you can activate DB2 ACS, it must already be installed (which is normally done unless a compact installation was used), and the database manager instance or instances with which you will use DB2 ACS must have been created.
The database manager automatically calls setup_db2.sh to activate DB2 ACS functionality during database manager instance creation and when you upgrade IBM Data Server. On AIX systems, it also automatically installs the embedded version of Tivoli Storage FlashCopy Manager; on Linux systems, you must explicitly issue the setup script to install Tivoli Storage FlashCopy Manager.
You can also activate DB2 ACS manually.
For more information about setup_db2.sh, see: setup_db2.sh script.
One important result of running the setup_db2.sh script is that the ownership and permissions of DB2 ACS executable files in the sqllib/acs directory are verified.
After you have activated DB2 ACS, you must configure DB2 ACS before you can perform snapshot backup operations.