4.
namelists
5.
process definitions
6.
storage classes
These objects can be manipulated, that is, defined, deleted, changed, by the
MQSeries commands.
Commands can be issued from:
•
the initialization input data sets
•
the MVS console
•
the system-command input queue
•
the COMMAND function of the CSQUTIL utility
•
the operations and control panels using ISPF.
When you migrate to a CICS/ESA environment, your channels are special. They
must be handled from the CICS region rather than through the MQSeries region:
You monitor and control the channels to remote queue managers with the DQM
(Distributed Queue Management) panels. Each MVS queue manager has a set of
DQM CICS transactions for controlling interconnections to compatible remote
queue managers using CICS ISC facilities.
The DQM channel control function (CCF) provides the administration and control
of message channels. The channel definition file (CDF):
•
is a VSAM file
•
is indexed on channel name
•
holds channel definitions
•
must be available to the CICS regions in which the channel control program
runs and where the MQSeries Channel adapters run.
You use channel definition panels to:
•
create, copy, display, alter, find and delete channel definitions
•
start channels, reset channel sequence numbers, stop channels and so on
•
display status information about channels.
As you can see, the VSE/ESA related MQSeries objects (and more) exist also for
MQSeries for MVS/ESA. Similarly, most of the parameters used to define these
objects are identical or have an equivalent which allows you to reproduce or
extend the definition you used under MQSeries for VSE/ESA.
But you can also see that the way the objects are defined is different in the
OS/390 environment. There is no way to directly migrate the VSE/ESA definitions.
With the MQPUTIL program shipped with MQSeries for VSE.ESA V.1.4 you can
print a listing with the MQSeries system, queues, and channels defined under
VSE/ESA. You have to use this listing to recreate equivalent definitions for
MQSeries for MVS/ESA. You will have to:
•
print the listing under VSE/ESA
•
check the DEFINE commands in the
MQSeries Command Reference
,
SC33-1369 to find matching parameters to recreate the queue manager and
queue definitions
•
decide on the environment from which you want to issue the commands
•
run the commands
204 VSE to OS/390 Migration Workbook
