The DQM channel control function
The channel control function provides the interface and function for administration
and control of message channels between systems.
It consists of commands, programs, files for the channel definitions, and
a storage area for synchronization information. The following is a brief description
of the components.
- The channel commands are a subset of the WebSphere MQ Commands (MQSC).
- You use MQSC and the control commands to:
- Create, copy, display, change, and delete channel definitions
- Start and stop channels, ping, reset channel sequence numbers, and resolve
in-doubt messages when links cannot be re-established
- Display status information about channels
- Channel definitions
on UNIX(R) platforms are held in the following subdirectories:
- /var/mqm/qmgrs/../auth/channels
- /var/mqm/qmgrs/../auth/channels/@MANGLED
- /var/mqm/qmgrs/../auth/clntconn
- /var/mqm/qmgrs/../auth/clntconn/@MANGLED
- /var/mqm/qmgrs/../channels
- /var/mqm/qmgrs/../clntconn
- Channel definitions on Windows(R) platforms are held in the following
subdirectories:
- C:\Program Files\IBM\WebSphere MQ\qmgrs\..\channels
- C:\Program Files\IBM\WebSphere MQ\qmgrs\..\clntconn
assuming that the product is installed in the default location.
- Channel definitions on iSeries(TM) are held in the following subdirectories:
- /QIBM/UserData/mqm/qmgrs/../auth/channels
- /QIBM/UserData/mqm/qmgrs/../auth/channels/&mangled
- /QIBM/UserData/mqm/qmgrs/../auth/clntconn
- /QIBM/UserData/mqm/qmgrs/../auth/clntconn/&mangled
- /QIBM/UserData/mqm/qmgrs/../channels
- /QIBM/UserData/mqm/qmgrs/../clntconn
- A storage area holds sequence numbers and logical unit
of work (LUW) identifiers. These are used for channel synchronization
purposes.