# OpenAM Administration Guide
2.2. Configuring Authentication Modules

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### 2.2.6. Hints For the Data Store Authentication Module

The Data Store authentication module allows a login using the Identity Repository of the realm to authenticate users. Using the Data Store module removes the requirement to write an authentication plug-in module, load, and then configure the authentication module if you need to authenticate against the same data store repository. Additionally, you do not need to write a custom authentication module where flat-file authentication is needed for the corresponding repository in that realm.

Yet, the Data Store module is generic. It does not implement data store-specific capabilities such as the password policy and password reset features provided by LDAP modules. Therefore the Data Store module returns failure when such capabilities are invoked.

ssoadm service name: `sunAMAuthDataStoreService`

Authentication Level

  Sets the authentication level used to indicate the level of security associated with the module. The value can range from 0 to any positive integer.

  ssoadm attribute: `sunAMAuthDataStoreAuthLevel`