Requirements for E2800 battery replacement

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Before you replace an E2800 battery, review the requirements and considerations.

Each controller canister includes a battery that preserves cached data if the AC power fails.

Recovery Guru alerts

If the Recovery Guru in SANtricity System Manager reports one of following statuses, you must replace the affected battery:

  • Battery Failed

  • Battery Replacement Required

From SANtricity System Manager, review the details in the Recovery Guru to confirm that there is an issue with a battery and to ensure no other items must be addressed first.

Procedure overview

To protect your data, you must replace a failed battery as soon as possible.

The following is an overview of the steps required to replace a battery in an E2800 controller:

  1. Prepare for replacement, following the appropriate steps for a duplex or simplex configuration.

  2. Remove the controller canister.

  3. Remove the failed battery.

  4. Install the new battery.

  5. Re-install the controller canister.

  6. Complete the replacement, following the appropriate steps for a duplex or simplex configuration.

Duplex or simplex configuration

The steps to replace a battery depend on whether you have one or two controllers, as follows:

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Two controllers (duplex)

  1. Take the controller offline.

  2. Remove the controller canister.

  3. Replace the battery.

  4. Replace the controller canister.

  5. Bring the controller online.

One controller (simplex)

  1. Stop host I/O operations.

  2. Power down the controller shelf.

  3. Remove the controller canister.

  4. Replace the battery.

  5. Replace the controller canister.

  6. Apply power to the controller shelf.

Requirements for replacing a battery

If you plan to replace a failed battery, you must have:

  • A replacement battery.

  • An ESD wristband, or you have taken other antistatic precautions.

  • Labels to identify each cable that is connected to the controller canister.

  • A management station with a browser that can access SANtricity System Manager for the controller. (To open the System Manager interface, point the browser to the controller’s domain name or IP address.)