Controllers; Overview And Requirements; Requirements For Replacing A Controller; Replace Controller - Fujitsu ETERNUS AB Series Hardware Maintenance Manual

Controllers

A controller consists of a board, firmware, and software. It controls the drives and implements the System
Manager functions. This section describes how to replace a single controller or both controllers in your AB6100
controller shelf.

Overview and requirements

Before you replace a controller, you need to be aware of certain requirements and considerations.

Requirements for replacing a controller

If you plan to replace a controller, keep the following requirements in mind.
Requirements for replacing a failed controller
• You must have a replacement controller canister with the same part number as the controller canister you
are replacing.
• You have an ESD wristband, or you have taken other antistatic precautions.
• You must use labels to identify each cable that is connected to the controller canister.
• You must have a #1 Phillips screwdriver.
• You must have installed SANtricity System Manager on a management station, so you can use the storage
array's command line interface (CLI).
If this software has not yet been installed, follow the instructions in the
Windows express
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 SANtricity System Manager displays Yes,
indicating that it is safe to remove this component.
This section describes how to replace a controller canister in the following controller shelves:
• AB6100 controller shelf

Replace controller

This section describes the steps to replace a single controller in your AB6100 controller shelf.
Before you begin
When you replace a failed controller canister, you must remove the battery, power supply, DIMMs, fans, and
HIC, if one is installed, from the original controller canister, and install them in the replacement controller
canister.
You can determine if you have a failed controller canister in two ways:
• The Recovery Guru in SANtricity 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.

Prepare to replace controller

When a controller canister fails, you must replace it. You prepare to replace a controller canister by verifying
that the replacement controller canister has the correct FRU part number, backing up the configuration, and
collecting support data.
configuration, or VMware express configuration
Linux express configuration,
to download and install it.
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