Distributed Action Handler 24.1

# Requirements

This section describes the software and hardware requirements for IDOL and the DAH.

## IDOL Servers Required

You must have at least two IDOL Servers installed for the DAH to distribute to.

NOTE: A single DAH can distribute to up to 1,024 IDOL Servers. However, OpenText recommends that you use the DAH to distribute to no more than 16 IDOL Servers, because distributing to a larger number can have a negative impact on processing time.

## State-Changing Actions File

In mirror mode, DAH uses the `sca.dat` file to determine the state-changing actions that it must distribute to all child servers.

When you are running the DAH in mirror mode, you must ensure that the `sca.dat` file is present. By default, this file must be in the same directory as the DAH, but you can also set the SCAFileDirectory configuration parameter to the location of this file.

If you upgrade DAH, you might need to download a new `sca.dat` file from the OpenText Software Licenses and Downloads portal (SLD). Refer to the Distributed Action Handler Release Notes.

Copyright 2023 Open Text
Version 24.1 | Last updated December 2023

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Product: IDOL Distributed Action Handler 24.1

Topic Title: Requirements