DatabaseRole

String

Not specified

Purpose

The DatabaseRole parameter activates SDS on a database server node and determines the starting database role for the server. The valid values for this parameter are SecondaryRole and PrimaryRole.

This parameter is automatically updated by a take-over operation when a database role changes. (For details, see "SDS Takeover Operations", in Chapter 1 of the JADE Synchronized Database Service (SDS) Administration Guide, or the JadeDatabaseAdmin class sdsInitiateTakeover method, in Chapter 1 of the JADE Encyclopaedia of Classes.)

Parameter is read when …

Each node is next initialized and when the role next changes.

Applicable to database role…

Both primary and secondary.

Rule

When a secondary database has been initialized as a secondary system, you cannot use this parameter to change the role to PrimaryRole.