vYes – Go to step 4.
vNo – Another component might require attention before you can remove the controller. Use the Recovery Guru function in the DS4700 Express Subsystem Management window to identify and correct any additional failures. If there are none, proceed with step 4 to replace the controller.
Electrostatic discharge can damage sensitive components. Touching the storage subsystem or its components without using a proper ground might damage the equipment. To avoid damage, use proper antistatic protection while handling any components.
4.Put on antistatic protection.
5.Unpack the new controller. Save all packing materials in the event you need to return the new controller.
6.Determine whether the replacement controller will serve as controller A or controller B (controller A is inserted in the left controller bay; controller B is inserted in the right controller bay), and then apply the controller labels for host channels, drive channels, and numeric display to the replacement controller. The controller labels and instructions are included with the replacement controller. Make sure that the labels are aligned properly and do not cover any ports or LEDs.
Attention: Handle and install
7.Disconnect all attached interface cables from the failed controller, including the SFP modules. Ensure that you label each cable so that you can reconnect them correctly to the new controller.
Use the following procedure to remove the SFPs from the RAID controller that has failed:
a.Remove the
b.Unlock the SFP module latch:
v For SFP modules that contain plastic tabs, unlock the SFP module latch by pulling the plastic tab outward 10°, as shown in Figure 105.
Plastic tab
Protective cap
10o
SFP module
F10ug009
Figure 105. Unlocking the SFP module latch - plastic variety
vFor SFP modules that contain wire tabs, unlock the SFP module latch by
pulling the wire latch outward 90°, as shown in Figure 106 on page 148.
Chapter 5. Replacing components 147
