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Power supply overview

Each 12-drive or 24-drive controller shelf or drive shelf has two power-fan canisters that supply a redundant power source and adequate cooling.

The following shelves contain two power supplies (power-fan canisters):

  • DE2000 controller shelf
  • DE4000 controller shelf (2U)
  • DE6000 controller shelf (2U)
  • DE120S drive shelf
  • DE240S drive shelf

The following figure shows an example 2U controller shelf with two power supplies (power-fan canisters). The DE120S and DE240S drive shelves are identical, but they include I/O modules (IOMs) instead of controller canisters.



Controller shelf with two power supplies (power-fan canisters) below the controller canisters.