Before you replace a DE6000H controller, review the requirements and considerations.

Each controller canister contains a controller card, a battery, and an optional host interface card (HIC).

Procedure overview

When you replace a failed controller canister, you must remove the battery and HIC, if one is installed, from the original controller canister, and install them in the replacement controller canister.

  • The second controller canister in the shelf has Optimal status.

  • The OK to remove field in the Details area of the Recovery Guru in ThinkSystem System Manager displays Yes, indicating that it is safe to remove this component.

You can determine if you have a failed controller canister in two ways:

  • The Recovery Guru in ThinkSystem System Manager directs you to replace the controller canister.

  • The amber Attention LED on the controller canister is on, indicating that the controller has a fault.

This procedure applies to IOM12 and IOM12B drive shelves.

This procedure is for like-for-like shelf IOM hot-swaps or replacements. This means you can only replace an IOM12 module with another IOM12 module or replace an IOM12B module with another IOM12B module. (Your shelf can have two IOM12 modules or have two IOM12B modules.)
e5700 attention led callout

(1) Attention LED

The figure shows an example controller canister; the host ports on your controller canister might be different.

Requirements for replacing a failed controller

Before you replace a controller, you must have:

  • A replacement controller canister with the same part number as the controller canister you are replacing.

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

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

  • A #1 Phillips screwdriver.

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

Duplex configuration requirements

For a controller shelf with two controllers (duplex configuration), you can replace a controller canister while your storage array is powered on and performing host I/O operations, as long as the following conditions are true:

  • The second controller canister in the shelf has Optimal status.

  • The OK to remove field in the Details area of the Recovery Guru in ThinkSystem System Manager displays Yes, indicating that it is safe to remove this component.