Siebel Analytics Server Administration Guide > Setting Up and Working with a Repository > Components of a Repository in the Administration Tool >

Physical Layer

The Physical layer contains information about the physical data sources. The most common way to populate the Physical layer is by importing metadata from databases and other data sources. If you import metadata, many of the properties are configured automatically based on the information gathered during the import process. You can also define other attributes of the physical data source, such as join relationships, that might not be present in the data source metadata.

There can be one or more data sources in the Physical layer, including databases and XML documents. For information about supported databases, see System Requirements and Supported Platforms on Siebel SupportWeb.

For each data source, there is at least one corresponding Connection Pool. The connection pool contains data source name (DSN) information used to connect to a data source, the number of connections allowed, timeout information, and other connectivity-related administrative details. For details about connection pools, see Working with Connection Pools.


 Siebel Analytics Server Administration Guide 
 Published: 23 June 2003