# Configuring a User for Amazon Web Services

You can use the sAmazonArray additional setting to override the default storage name, AWS-DefaultUseIAMRoleArray, that is used to associate snapshots to the AWS account through the IAM role assigned to EC2 instances.

Make sure that the IAM role has the permission to create Amazon EBS volume snapshots requirements. See Requirements and Usage for AWS IAM Policies and Permissions.

You need this additional setting in the following cases:

- For SP18 clients

- For authentication with access key and secret key

From Feature Release 11.19, if an Amazon EC2 instance has the IAM role assigned, then you do not need to set the additional setting sAmazonArray in the Commvault software.

## Procedure

- To the client computer, add the additional setting as shown in the following table.

  For instructions about adding additional settings from the CommCell Console, see Adding Additional Settings.

  Property | Value
  Name | sAmazonArray
  Category | MediaAgent
  Type | String
  Supported Values | Use this additional setting to specify the AWS snapshot storage name as it appears in Arrays page for the AWS user, to perform IntelliSnap operations using Amazon Snap Engine.

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