The green Cache Active LED on the back of each controller is on when cached data needs to be
written to the drives. You must wait for this LED to turn off.
Cache Active LED
Step 7. From the Home page of ThinkSystem System Manager, select
View Operations in Progress
. Wait
for all operations to complete before continuing with the next step.
Step 8. Power down the controller shelf.
a. Turn off both power switches on the controller shelf.
b. Wait for all LEDs on the controller shelf to turn off.
Go to Upgrade host interface card.
Upgrade host interface card
You upgrade a host interface card (HIC) to increase the number of host ports or to change host protocols. If
you are upgrading HICs in a two-controller configuration, repeat all steps to remove the other controller
canister, remove the HIC, install the new HIC, and replace the second controller canister.
Step 1: Remove controller canister
Remove the controller canister so you can upgrade the new host interface card. When you remove a
controller canister, you must disconnect all cables. Then, you can slide the controller canister out of the
controller shelf.
Before you begin
• You have labels to identify each cable that is connected to the controller canister.
• You have an ESD wristband, or you have taken other antistatic precautions.
Step 1. Label each cable that is attached to the controller canister.
Step 2. Disconnect all the cables from the controller canister.
Attention:
To prevent degraded performance, do not twist, fold, pinch, or step on the cables.
Step 3. If the HIC ports use SFP+ transceivers, remove them.
Depending on what type of HIC you are upgrading to, you might be able to reuse these SFPs.
Step 4. Confirm that the Cache Active LED on the back of the controller is off.
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ThinkSystem DE Series Hardware Installation and Maintenance Guide for 2U Enclosures
Summary of Contents for DE120S
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