Most of the Data Restore functions work on physical pages. When the database manager is in a VM environment, Data Restore processes all functions in VM, even if VSE Guest Sharing is used. When the database manager is in a VSE environment, Data Restore processes all commands in VSE.
The only exception to this is the RELOAD function, which uses DB2 Server for VSE & VM functions to recreate tables and insert rows before recreating the physical database pages. If you have VSE Guest Sharing, Data Restore can process the RELOAD command in either environment.
You can execute the RELOAD process in single or multiple user mode.