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Dell-EMC

E20-322 · Question #112

A customer has enabled MirrorView/A on their VNX arrays. Even before MirrorView/A is actively transferring data, a performance impact is noticed. What is causing this?

The correct answer is A. MirrorView/A is updating the Reserved LUN area to track data changes. See the full explanation below for the reasoning.

Question

A customer has enabled MirrorView/A on their VNX arrays. Even before MirrorView/A is actively transferring data, a performance impact is noticed. What is causing this?

Options

  • AMirrorView/A is updating the Reserved LUN area to track data changes.
  • BMirrorView/A software uses additional memory in the VNX storage processors, causing less
  • CMirrorView/A cannot be combined with RecoverPoint in the same array.
  • DMirrorView/A is using SAN Copy as underlying technique, causing the overhead.

How the community answered

(48 responses)
  • A
    71% (34)
  • B
    17% (8)
  • C
    8% (4)
  • D
    4% (2)

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