Calculation of Allocated Table Size
VDBA automatically calculates table size based on the number of allocated pages. Using VDBA, select a table and select the Pages tab to view the pages property sheet.
Alternatively, the allocated_pages field in the iitables standard catalog can be used to calculate table size based on the number of allocated pages. You can calculate:
• The size of the table on disk as:
iitables.allocated_pages * PageSize
• The number of free pages left in the table as:
iitables.allocated_pages – iitables.number_pages