Online change and DEDB dependent and independent overflow space allocation

Fast Path has provides limited support for extending DEDB AREA Independent Overflow space allocation. Additionally, DEDB online change will allow changes to the overflow space allocation both within each UOW (Dependent Overflow) and outside the root addressable portion (Independent Overflow) of the AREA.

Both Dependent and Independent Overflow changes are considered to be Area-level changes. However, such changes must not alter the number of CIs defined to the root addressable portion. Changing the number of root addressable CIs will change the number of root anchor points and could affect the DEDB randomizing routine in locating database records.

Changing DEDB AREA overflow allocation requires the same procedural steps as those defined for changing the root addressable area.