Dynamic resource installation

It is recommended that you install the majority of your resources automatically, as each CICS® system initializes. However, at times it may be necessary to refresh those resources or install additional resources to satisfy special circumstances. Once a CICS system is running, you can use Business Application Services to install new or updated resources dynamically.

You can install a single resource in a single CICS system or a whole set of resources of various types in multiple CICS systems, complete with definition assignment and override values. When you install CICS resources dynamically, you can force those resources to replace any identical resources that have been installed in the system previously.

Notes:
  1. The maintenance point CMAS for the CICSplex must be active when you attempt to install resources dynamically. If the maintenance point is not available, the installation request fails.
  2. You cannot dynamically install session definitions (SESSDEF). They are installed when you install the associated connection definitions (CONNDEF).

When you install an individual resource, you must identify the CICS systems where the resource should be installed and provide information about its use as a local or remote resource. Optionally, you can provide override values for specific attributes of the resource. Any override values that you specify are used only for this one-time installation of the resource. The resource definition in the data repository remains unchanged.

You can use the install action command to install dynamically a resource into one or more active systems. For details of valid CICS systems, see the descriptions of the individual BAS objects. The options for installing a resource are the same ones you can specify when you create a resource assignment (RASGNDEF), including specifying an override expression to be applied for this installation.

Note:
Start of change
The File key segment definitions and Session definitions (FSEGDEF and SESSDEF) views do not support the install action command.
End of change

CICSPlex® SM attempts to install all of the resources you identify, but sometimes conditions in the CICSplex prevent the installation process from completing successfully. When installation problems occur, CICSPlex SM provides detailed information about the errors.

[[ Contents Previous Page | Next Page Index ]]