# Could not communicate with controller [number].

## Explanation:

A hardware error occurred.

## Action:

1. Verify that the controller, cables, and physical drives are installed properly.
2. Verify that there is power to the physical drives.
3. Retry the command.
4. If the command still fails, restart the server and retry the command.

5. If the problem persists, contact your IBM service representative.

Glossary | Contents

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