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Controller overview

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

Replace 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.


Attention LED

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