All workstations in a distributed HCL Workload Automation network
are organized in one or more domains, each of which consists
of one or more agents and a domain manager acting as the management
hub. Most communication to and from the agents in the domain is routed
through the domain manager.
All networks have a master domain where the domain manager is the
master domain manager. It maintains the database of all scheduling
objects in the domain and the central configuration files. The master
domain manager generates the plan and creates and distributes the
Symphony file. In addition, logs and reports for the network are maintained
on the master domain manager.
You can organize all agents in your network in a single domain,
or in multiple domains.
Single-domain networks
A single domain network consists of a master domain manager and
any number of agents. The following shows an example of a single domain
network. A single domain network is well suited to companies that
have few locations and business functions. All communication in the
network is routed through the master domain manager. With a single
location, you are concerned only with the reliability of your local
network and the amount of traffic it can handle.
Figure 1. Single-domain network
Multiple-domain network
Multiple domain networks are especially suited to companies that span multiple locations,
departments, or business functions. A multiple domain network consists of a master domain manager,
any number of lower tier domain managers, and any number of agents in each domain. Agents
communicate only with their domain managers, and domain managers communicate with their parent
domain managers. The hierarchy of domains can go down to any number of levels.Figure 2. Multiple-domain networkIn this example, the master domain manager is located in Atlanta. The master domain manager
contains the database files used to document the scheduling objects, and distributes the Symphony
file to its agents and the domain managers in Denver and Los Angeles. The Denver and Los Angeles
domain managers then distribute the Symphony file to their agents and subordinate domain managers in
New York, Aurora, and Burbank. The master domain manager in Atlanta is responsible for broadcasting
inter-domain information throughout the network.
All communication to and from the Boulder domain
manager is routed through its parent domain manager in Denver. If there are schedules or jobs in the
Boulder domain that are dependent on schedules or jobs in the Aurora domain, those dependencies are
resolved by the Denver domain manager. Most inter-agent dependencies are handled locally by the
lower tier domain managers, greatly reducing traffic on the network.
You can change the domain infrastructure dynamically as you develop
your network. To move a workstation to a different domain, just requires
you to change the domain name in its database definition.
Note: You cannot schedule jobs or job streams to run on all workstations in a domain by identifying
the domain in the job or job stream definition. To achieve this, create a workstation class
that contains all workstations in the domain.
For more information about workstation classes,
see Workstation class
