1.2.7 Creating a HiRDB system definition when using the standby-less system switchover (effects distributed) facility

This section explains how to create a HiRDB system definition when using the standby-less system switchover (effects distributed) facility and provides related notes.

Key point
The operating environment of the back-end server for the unit in which the host BES is running must match the operating environment of the back-end server for the unit in which the guest BES is running.
Organization of this subsection
(1) System common definition
(2) Unit control information definition
(3) Server common definition
(4) Back-end server definition

(1) System common definition

Use the same system common definition for all units. Copy the system common definition that has been created.

Note:
Specify the operand that is specified as the default value of the back-end server definition in the system common definition. An example of such an operand is the pd_sql_object_cache_size operand. You cannot specify this operand in the server common definition only.

(2) Unit control information definition

Some restrictions apply to the operands that can be specified in the unit control information definition of the unit to which the standby-less system switchover (effects distributed) facility is to be applied. For details about the operands that can be specified in the unit control information definition, see G. List of Operands That Can Be Specified When Using the Standby-less System Switchover (Effects Distributed) Facility (Unit Control Information Definition).

If you must specify an operand that cannot be specified in the unit control information definition, specify it in the system common definition or back-end server definition.

Notes:
If an operand satisfies either of the following conditions, it must be specified in the same way in all of the unit control information definitions of the units that comprise an HA group.
  • Operand that can be specified in both the unit control information definition and back-end server definition
  • Operand in the unit control information definition that affects the operation of the back-end server

(3) Server common definition

Units that comprise an HA group use the same server common definition. Copy the server common definition that has been created.

(4) Back-end server definition

Define the back-end server definition of the host BES in each of the units that comprise an HA group. Copy the back-end server definition that has been created.