The configuration pattern of an operating environment and an execution environment that can be implemented to set up a cluster configuration includes the configuration to deploy an operating environment and an execution environment on a 1-to-1 basis, in addition to the configuration in which a single operating environment is set up, irrespective of the number of execution environments.

The following are the merits and demerits of the configuration that deploys an operating environment and an execution environment on a 1-to-1 basis:

Merits

• The execution environment and operating environment are compiled on a single machine.
• Even if one operating environment is down, you can re-execute erroneous requests from other operating environments.
• You can reduce the number of licenses of the management software since machines for operating environment are no longer required.
• You no longer require a spare operating environment.

Demerits

• You cannot use the GUI of an operating environment when you set up an execution environment on UNIX.
• You cannot perform batch operations for each cluster.

The following figure shows the example 1-to-1 configuration of an operating environment and an execution environment:

Figure 1-18 Example of 1-to-1 configuration of an operating environment and an execution environment

Note

Points to be considered when migrating to 1-to-1 configuration of an operating environment and execution environment from any other configuration of an operating environment and an execution environment.

For the operating environment and the execution environment configuration, see "1.2 Relationship of the operating environment and the execution environment with the entire system " in "Service Platform System Setup and Operation Guide".

• If the pre-migration environment is set up in version 08-70 or earlier, you must unset up all HCSC servers included in the cluster once. Therefore, you cannot migrate the information shared in the cluster, such as process instances and execution logs stored in the database.
• You cannot migrate from 1-to-1 configuration of an operating environment and an execution environment which is not using the database to 1-to-1 configuration of an operating environment and an execution environment using the database.