# System Architecture

An IDOL infrastructure can include the following components:

- Connectors. Connectors extract data from repositories and send the data to CFS.
- Connector Framework Server.
- IDOL Server. IDOL Server provides features to analyze unstructured information and extract meaning from that information.
- Distributed Index Handler (DIH). The Distributed Index Handler distributes data across multiple IDOL servers. Using multiple IDOL servers can increase the availability and scalability of the system.

These components can be installed in many different configurations. The simplest installation consists of a single connector, a single CFS, and a single IDOL server.

A more complex configuration might include more than one connector, or use a Distributed Index Handler (DIH) to index content across multiple IDOL servers.

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