With dynamic resource definition (DRD) enabled,
you can create runtime resources and resource descriptors dynamically,
eliminating the need to use the online change process or the batch
system definition process with an IMS cold
start.
Create runtime transaction resource and descriptor definitions
using the CREATE TRAN and CREATE TRANDESC commands.In addition
to using the CREATE TRAN command to create transaction resources,
you can use the Destination Creation exit routine (DFSINSX0).
To create runtime transaction resource and descriptor
definitions using the CREATE TRAN and CREATE TRANDESC commands, perform
the following procedure:
Procedure
- Optional: Issue a QUERY TRANDESC DEFAULT(Y)
SHOW (ALL) command to view the current transaction default
settings and evaluate whether they meet your requirements for the
new transaction resource or descriptor definition.
If the
default settings do not meet your requirements, you have the following
options:
- Override the default settings by issuing the CREATE command with
parameter values that meet your requirements.
- Create the resource or descriptor definitions based on an existing
resource or descriptor definition by using either the LIKE (RSC(resource_name))
keyword or the LIKE (DESC(descriptor_name)) keyword.
- Create a default descriptor by issuing a CREATE TRANDESC
NAME() SET (DEFAULT(Y)) command with the settings that meet
your requirements.
- Issue a CREATE TRAN or CREATE TRANDESC command to create
transaction resources or descriptor definitions, respectively.
For the details about parameters for the CREATE command,
see IMS Version 15.2 Commands, Volume 1: IMS Commands A-M.