Calculating virtual storage requirements for a dictionary

Estimate the virtual storage as part of your calculations for the space required for a dictionary.

Procedure

To calculate how much storage is needed in the database services address space (ssnmDBM1) for each dictionary:

Calculate the necessary dictionary size by using the following formula:

dictionary size (number of entries) × 16 bytes

What to do next

When a dictionary is read into storage from a buffer pool, the whole dictionary is read, and it remains there as long as the compressed table space is being accessed.