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If you are using the Drive Security feature and you are replacing the controller canisters, you must have saved the drive
security key.
Steps
1. Turn off both power switches on the controller-drive tray.
2. Wait for all LEDs on the controller-drive tray to go dark.
3. Turn off both power switches on any attached expansion drive trays.
4. Wait two minutes for drive activity to stop.
Removing the controller canisters
The controller canisters contain the controllers, HICs, and batteries. When you upgrade hardware to change the host protocol,
you must remove both controller canisters from the controller-drive tray or flash array.
Before you begin
You must have an ESD wristband or have taken other antistatic precautions.
About this task
If you are upgrading only the HICs, you must remove the controller canisters to access the HICs. If you are replacing the
controller canisters, you must remove the original controller canisters and their batteries, so you can use the batteries in the new
controller canisters.
Steps
1. Put on antistatic protection.
Attention:
Possible hardware damage – To prevent electrostatic discharge damage, use proper antistatic protection when
handling tray components.
2. Label each cable that is attached to the controller canisters.
Labels make it easier to replace the host cables and to reconnect the management cables and any drive cables.
3. Disconnect all cables from the controller canisters.
If fiber-optic cables are present, use the two release levers to partially remove the controller canister. Opening these release
levers makes it easier to press down the fiber-optic cable release tab.
Attention:
Potential degraded performance – To prevent degraded performance, do not twist, fold, pinch, or step on the
cables.
4. Follow these steps to remove controller A:
a. Unlock and rotate the release handles out to release the controller canister.
b. Using the release handles and your hands, pull the controller canister out of the tray.
Removing the controller canisters
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