This topic provides an overview of the canister types and describes the requirements you need to know about before replacing a canister.
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Power supply overview
Each 24-drive controller shelf or drive shelf includes two power supplies with integrated fans. These are referred to as power-fan canisters in SANtricity System Manager. If a power-fan canister fails, you must replace it as soon as possible to ensure that the shelf has a redundant power source and adequate cooling.
Power canister overview
Each 60-drive controller shelf or drive shelf includes two power canisters for power redundancy.
Fan canister overview
Each 60-drive controller shelf or drive shelf includes two fan canisters.