An administrator is troubleshooting availability issues on a FCoE based storage array that uses deduplication. An administrator has access to the raw data from the SAN and wants to restore the data…

Question

Options

• AThe existing SAN may be read-only.
• BThe existing SAN used LUN masking.
• CThe new SAN is not FCoE based.
• DThe data may not be in a usable format.

• A
  15% (5)
• B
  3% (1)
• C
  6% (2)
• D
  76% (25)

Explanation

Storage deduplication works by replacing redundant data blocks with pointers/references to a single stored copy, dramatically reducing physical storage footprint. When raw deduplicated data is extracted and moved to a different hardware platform - particularly one that lacks the same deduplication engine or metadata - the data cannot be automatically rehydrated (reconstructed into its original full form). The result is raw data that is incomplete or unreadable without the original deduplication system to resolve all the pointers. This is why the data may not be in a usable format (D). Answer A (read-only SAN) is a permissions issue, not a data format issue. Answer B (LUN masking) is an access control mechanism, not a data integrity problem. Answer C (non-FCoE target) may cause protocol compatibility issues but does not inherently corrupt the data format.

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