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H19-338_V3.0 · Question #309

Dorado V6 LUNs have controller ownership.

The correct answer is B. False. Option B is correct because the Huawei Dorado V6 uses an Active-Active (AA) controller architecture, meaning all controllers can simultaneously process I/O for any LUN without one controller being designated as the owner. Controller ownership is a characteristic of…

Huawei Storage Product Features and Portfolio

Question

Dorado V6 LUNs have controller ownership.

Options

  • ATrue
  • BFalse

How the community answered

(53 responses)
  • A
    28% (15)
  • B
    72% (38)

Explanation

Option B is correct because the Huawei Dorado V6 uses an Active-Active (AA) controller architecture, meaning all controllers can simultaneously process I/O for any LUN without one controller being designated as the owner. Controller ownership is a characteristic of Active-Passive or ALUA (Asymmetric Logical Unit Access) architectures, where a LUN is bound to a preferred controller and traffic to a non-owning controller incurs a performance penalty. Option A is wrong because it conflates the Dorado V6 design with older, asymmetric storage models where ownership was required to avoid cross-controller I/O overhead. In the Dorado V6, any controller can serve any LUN with equal performance, making the concept of ownership irrelevant and inapplicable.

Memory tip: Associate "Dorado V6" with "all controllers, all the time" -- because it is fully Active-Active, ownership does not exist, so any answer claiming LUNs belong to a controller is describing a different, older architecture.

Topics

#Dorado V6#LUN Architecture#Controller Independence#Storage Virtualization

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