Resources controlled by the MTO
Resources controlled by the master terminal operator (MTO) are listed, including communications, scheduling, and integrity.
The following table summarizes the resources controlled by the MTO.
| Communications | Scheduling | Integrity |
|---|---|---|
| Telecommunication lines | Regions | Checkpoint |
| Physical terminals | Databases | Restart |
| Logical terminals | Transactions | Database copy |
| Spooled Output | Programs | Database availability |
| Users | System status |
Connections for network operations
The major part of any detailed instructions for the MTO is the required connections or any alternate connections (in the case of terminal or line failures). A useful aid for the MTO is a chart showing the following:
- The network
- The device type
- PTERM and LTERM names
- Availability requirements
- A summary of the application usage
The chart should specify the contacts for problem resolution, whether they are user liaison, VTAM® operator, or some other form of network control.
Session initiation and termination options
Because of their functional capability, many VTAM-supported terminal devices are shared by IMS and other users. You have several choices for handling connect and disconnect. You can have the remote operator or master terminal operator be responsible, or you can call upon intervention by a VTAM operator. The following table summarizes your choices.
| Control by | Initiate by | Terminate by |
|---|---|---|
| MTO | /OPNDST | /CLSDST |
| Remote operator | LOGON IMS | /RCLSDST |
| (VTAM,Defn) | Initialization list | - |
| VTAM operator | VARY command | VARY command |