# DAH Engines Configuration Parameters

If you install and operate the DAH as integrated with IDOL, you can configure child engines for DAH and DIH separately. This option allows you increased flexibility when querying and indexing content in remote servers. For example, you might define multiple DIH child engines for content that you index through a combination of failover and mirroring.

Use the `[DAHEngines]` section to set the total number of IDOL servers to which the DAH sends actions.

You must create a `[DAHEngineN]` subsection for each child engines that DAH must send actions to. In this section, you specify the child server configuration details.

For example:

    [DAHEngines]
    Number=2

    [DAHEngine0]
    Host=localhost
    Port=9000

    [DAHEngine1]
    Host=12.3.4.56
    Port=9000

NOTE: This configuration for the DAH distribution child servers is not used for Standalone DAH.

- For Standalone configuration see Distributed Engine Configuration Parameters
- For Integrated configuration in which DAH and DIH are configured together, see Distribution IDOL Servers Configuration Parameters

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