(1) Controller shelf with two power supplies (power-fan canisters) below the controller canisters
Requirements for replacing a power supply
If you plan to replace a power supply, keep the following requirements in mind.
•
You must have a replacement power supply (power-fan canister) that is supported for your
controller shelf or drive shelf model.
•
You have an ESD wristband, or you have taken other antistatic precautions.
•
You can replace a power supply (power-fan canister) while your storage array is powered on
and performing host I/O operations, as long as the following conditions are true:
◦ The second power supply (power-fan canister) in the shelf has an Optimal status.
◦ The OK to remove field in the Details area of the Recovery Guru in ThinkSystem System
Manager displays Yes, indicating that it is safe to remove this component.
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.
4.1.2. 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:
•
DE4000H (4U60) controller shelves
•
DE600S drive shelf
The following figure shows the back of a DE600S drive shelf with the two power canisters:
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