Restricting Simultaneous Activation of Services
A mutex group defines a set of services that are mutually exclusive—services that the SAE cannot simultaneously activate for a particular subscriber. You can assign a service to more than one mutex group. When a subscriber requests activation of a particular service, the SAE determines which mutex groups contain that service. If the subscriber has current activations of other services listed in those mutex groups, the SAE proceeds in one of the following ways, depending on how you configured the mutex groups:
- Deactivates the other services listed in the mutex groups, and then activates the requested service.
- Refuses access to the requested service.
If the requested service is not listed in a mutex group, the SAE can activate the service regardless of any other services that the subscriber is using.
Restricting Simultaneous Activation of Persistent or Automatic Services
The SAE uses the following method to prevent simultaneous activation of mutually exclusive services that are configured for persistent activation or that are activated automatically when a subscriber logs in:
- If you (or a subscriber) persistently activate an existing service or change a subscription to activate an existing service when a subscriber logs in, the SAE checks whether the service is specified in one or more mutex groups.
- The SAE determines how each mutex group that lists the service is configured, and the SRC software acts accordingly.
- If all the mutex groups that list the service allow automatic deactivation of services, the SRC software removes the persistent activations for the service and changes activate-on-login subscriptions to manual.
- If any of the mutex groups does not allow automatic deactivation of services, the SRC software will not allow you to:
- Persistently activate the service.
- Change the subscription to activate the service when a subscriber logs in.
Adding a Mutex Group
The New Mutex Group dialog box appears.
- true—For any one subscriber, the SAE deactivates a service in the group before activating another service in the group.
- false—SAE refuses access to a requested service if the subscriber is already using another service in this group.
An object for the new mutex group appears in the navigation pane, and basic details for the new mutex group appear in the Main tab of the Mutex Group pane.
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- Use the field descriptions in Mutex Group Fields to configure the mutex group, and then click Save.
Mutex Group Fields
Use the fields in this section to configure mutex groups.
Auto Deactivate
- true—For any one subscriber, the SAE deactivates a service in the group before activating another service in the group.
- false—SAE refuses access to a requested service if the subscriber is already using another service in this group.
Description
- Provides information about this mutex group; keywords that the find utility uses.
- Value—Text
- Default—No value
Services
For information about adding services to mutex groups, see Adding Services to a Mutex Group.
Adding Services to a Mutex Group
You can add multiple services to a mutex group.
NOTE: You must define the service before you can add it to a mutex group. For information about defining services, see Adding Services.
The Select Object window appears.
You can shift-click or control-click services to select multiple options.
The services appear in the Mutex Group pane.
The services appear in the Services field of the Mutex Group pane.