If the second power supply (power-fan canister) in the shelf does not have Optimal
status or if the Recovery Guru indicates that it is not OK to remove the power-fan
canister, contact technical support.
Power canister
Each 60-drive controller shelf or drive shelf includes two power canisters for power redundancy.
Shelf types for a power canister
You can replace a power canister in the following shelves:
• E5760 controller shelves
• DE460C drive shelf
The Replace power canister topics do not describe how to replace a failed power canister in a DE6600 drive
tray, which might be connected to the controller shelf.
The following figure shows the back of a DE460C drive shelf with the two power canisters:
The following figure shows a power canister:
Requirements for replacing a power canister
If you plan to replace a power canister, keep the following requirements in mind.
• You have a replacement power canister that is supported for your controller shelf or drive shelf model.
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