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# Configure D@RE

Data at Rest Encryption (D@RE) protects data confidentiality by adding back-end encryption to the entire storage system. Unisphere supports the entry and validation of D@RE external key security certificates.

## Prerequisites

This feature is not supported by storage systems running HYPERMAX OS 5977.

Data encryption is enabled on the storage system.

D@RE configuration management setting is set to enabled (see Set general preferences).

## About this task

You can enter and validate D@RE external key security certificates using Unisphere.

Thus, you no longer must share sensitive secure information (such as SSL certificates) with Dell personnel in order to deploy or manage D@RE external key manager (addresses customer internal security policies regarding allowing sensitive information to be shared outside the company).

To configure D@RE:

## Steps

1. Select the storage system.
2. Select System > System Properties.
3. Click next to the System Data Encryption parameter.
   The first page of the D@RE configuration wizard is displayed.
4. Do one of the following:
   - Set up DARE
     - Click D@RE Setup and click NEXT.
     - Enter value for Application Name.
     - Click Show Password to show the password fields, and type a password into the Password and Confirm Password fields. Click Hide Password to hide the password fields.
     - View value (CipherTrust) for Server Maker.
     - Choose a Certificate Authority file and a Client Credential file.
     - Enter values for IP Address and its associated port.
     - Optional: Click and add additional IP addresses.
     - Click NEXT.
   - Update DARE certification
     - Click D@RE Certificate Update and click NEXT.
     - Click Show Password to show the password fields, and type a password into the Password and Confirm Password fields. Click Hide Password to hide the password fields.
     - Choose a Certificate Authority file and a Client Credential file.
     - Click NEXT.
5. Review the changes.
6. Do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.