Lenovo ThinkSystem DE Series - Controllers; Requirements for DE2000 H or DE4000 H controller replacement

Chapter 3. Controllers
3.1. Requirements for DE2000H or DE4000H controller
replacement
Before you replace or add a DE2000H or DE4000H controller, review the
requirements and considerations.
Each controller canister contains a controller card, a battery, and an optional host interface card
(HIC).
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.)
3.1.1. Requirements for replacing controller
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.
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.
(1) Attention LED

The figure shows an example controller canister; the host ports on your controller
canister might be different.
16