Use the PROREST utility with the -list parameter to obtain a description of the application data storage areas within a database backup. For example:

prorest db-name device-name -list

The following example shows the output from the prorest -list command: 

OpenEdge Release 12
Area Name: Schema Area
       Size: 7680, Records/Block: 32, Area Number: 6, Cluster Size: 1
Area Name: Info Area
       Size: 1024, Records/Block: 32, Area Number: 7, Cluster Size: 1
Area Name: Customer/Order Area
       Size: 2560, Records/Block: 32, Area Number: 8, Cluster Size: 8
Area Name: Primary Index Area
       Size: 32, Records/Block: 1, Area Number: 9, Cluster Size: 8
Area Name: Customer Index Area
       Size: 256, Records/Block: 1, Area Number: 10, Cluster Size 64
Area Name: Order Index Area
       Size: 8192, Records/Block: 32, Area Number: 11, Cluster Size 64

Use this information to create a new structure description (.st) file and database so you can restore the backup. If you do not create a structure description file, PROREST creates one variable-length extent for each storage area.