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Provisioning provides high availability solutions in the following three tiers:
The clients are the Identity Manager User Console, Identity Manager Management Console and the Provisioning Manager. You can group clients together based on their geographic locations, organizational units, business functions, security requirements, provisioning workload, or other administration needs. Generally, we recommend keeping clients close to the endpoints they manage.
Clients use primary and alternate Provisioning Servers, in order of their failover preference. Client requests continue to be submitted to the first server until that server fails, that is, the connection stays active until the server fails. If a failure occurs, the client reviews the list of configured servers, in order of preference, to find the next available server.
The Provisioning Server can have multiple connector servers in operation. Each connector server handles operations on a distinct set of endpoints. Therefore, your organization could deploy connector servers on systems that are close in the network to the endpoints. For example, if you have many UNIX /etc endpoints, you can have one connector server installed on each server so that each connector server controls only the endpoints on that server where it is installed.
Installing Connector Servers close to the endpoints also reduces delays in managing accounts on endpoints.
Provisioning Servers uses a CA Directory router to send requests to primary and alternate Provisioning Directories in order of preference.
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