17.7 Determining the size of the registry RDAREA

The following formula is used to determine the size of the registry RDAREA.

Formula
(Number of pages storing registry management tables + number of pages storing registry management table indexes) [Figure] 1.3

Each table or index is allocated in segments. The value obtained for each table or index is rounded up in segments.

Organization of this section
(1) Number of pages storing registry management tables
(2) Number of pages storing registry management table indexes

(1) Number of pages storing registry management tables

Formula
[Figure]
a: Number of contexts for registry management tables
b: Number of pages for registry management tables
c: Length of registry context names
d: Length of access passwords

(2) Number of pages storing registry management table indexes

Formula
Name of tableTypeKey lengthKey typeAverage duplication level
SQL_REGISTRY_CONTEXT1a + 1Number of context names + 11
SQL_REGISTRY_KEY2b + 6Number of key values1
a: Length of registry contexts
b: Length of registry key names