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.
•
#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
If the controller shelf has 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.
3.2. Replace controller in DE2000H or DE4000H duplex
configuration
You can replace a controller canister in a duplex (two-controller) configuration,
for the following controller shelves:
•
DE2000H/DE4000H (2U12) controller shelf
•
DE2000H/DE4000H (2U24) controller shelf
•
DE4000H (4U60) controller shelf
•
DE4000F flash array
3.2.1. About this task
Each controller canister contains a controller card, a battery, and an optional host interface card
(HIC). When you replace a 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.
This procedure applies to IOM12 and IOM12B drive shelves.
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