After you shut down a database and back it up, you must update the .st file of the database to reflect the new location of the extents you want to move.

The simplest way to do this is to generate a .st file of your database using PROSTRCT LIST and then edit the file to reflect the new locations of the extents you want to move. As a result of this step, you have the most up-to-date .st file.

Note: If you do not perform this step, then later when you update the .db file using the PROSTRCT REPAIR utility, the database uses the outdated .st file. This might result in the .db file being written with outdated extent directory information, and you might not be able to start up the database.

After you update the .st file of the database, you can move the extents to their new location.