# The battery-backup cache device on controller [number] is defective.

## Explanation:

The battery-backup cache device is installed improperly or is defective.

## Action:

1. Verify that the battery-backup cache device is installed properly.
2. If the battery-backup cache device is installed properly but is defective, contact your IBM service representative.

Glossary | Contents

x-0017-SRM-00-00-EN