Replacing the Storage Controller BatteryEach storage controller contains a hot-swappable battery. The battery supplies enough emergencypower to back up vital information in the event of AC power loss.Prerequisites1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.About this taskStorage controller batteries can be replaced without shutting down the storage system.Steps1. Press the release tab and then slide the battery out of the storage controller.Figure 22. Replace the Storage Controller Battery1. Battery 2. Release tab3. Storage controller2. Align the replacement battery with the slot on the storage controller.3. Slide the battery into the storage controller until the release tab clicks into place.Next steps1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.Replacing a Storage ControllerThe SCv2000/SCv2020 storage system supports redundant hot-swappable storage controllers.Storage controllers provide the following data path and storage management functions for the storagesystem:• Monitoring and controlling some storage system environment elements such as temperature, fan,power supplies, and storage system LEDsReplacing SCv2000/SCv2020 Components 29