The Expand/Contract Routine is used to increase or decrease the pre-allocated records for data files. The routine MUST be run standalone, that is have all other screens and multiple windows return to the Main Menu (or close the window). The program will ask for a new maximum size and then start the expansion (contract). When it is finished it will print a summary report. The routine then updates the counts displays for used and maximum records. The time stamp file records each phase of the expand/contract routine.
Technical notes: The expansion routine creates a “phase file” as it proceeds through each step. This assures data integrity in case a power outage occurs during an expansion. The file is named: PWN992.SEQ, in order to look at the phase of the expand, use the ‘X’ for exit from any menu. Then at the command prompt usually ‘APS.’ Type the following command:
TYPE PWN992.SEQ
The data displayed will be one line and the layout of the data will follow this pattern:
The phase of the expansion, 2 character number
The temporary disk where the data is stored, 6 characters.
The number of the file being expanded, 2 characters.
The file extension of the temporary file, 4 characters.
The maximum number of records to create in the expanded file, 6 digits.
