Which storage systems support gateway-free active-active configuration? (Multiple choice)

Question

Options

• ANetApp A300
• BEMC PowerMax
• CEMC Unity
• DHuawei OceanStor V5

• A
  10% (3)
• B
  69% (20)
• C
  21% (6)

Explanation

EMC PowerMax supports gateway-free active-active via SRDF/Metro, and Huawei OceanStor V5 supports it via HyperMetro - both technologies are built directly into the array's controller software, requiring no external gateway device to coordinate simultaneous read/write I/O across sites.

EMC Unity (C) is a mid-range array that relies on VPLEX for active-active stretched configurations - VPLEX is an external virtualization gateway, disqualifying it from "gateway-free" status. NetApp A300 (A) uses MetroCluster or ALUA-based approaches that either require mediator components or provide only asymmetric active-passive behavior, not true gateway-free active-active at the array level.

Memory tip: Focus on the "built-in vs. bolt-on" distinction - if the array needs an external box (like VPLEX) to achieve active-active, it's gateway-dependent. PowerMax and OceanStor V5 both bake active-active replication natively into their controller firmware, so remember: "PowerMax + Huawei = Pure Hardware active-active" (no gateway needed).

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