Which characteristics define a Fault Set in PowerFlex? (Choose two)

Question

Options

• AContains metadata for storage pools
• BEnsures data availability during node failure
• CRequires a minimum of 3 nodes
• DIs limited to a single Protection Domain

• A
  5% (2)
• B
  90% (38)
• D
  5% (2)

Explanation

A Fault Set in PowerFlex (formerly ScaleIO) is a logical grouping of nodes designed to ensure data availability during node or rack failure (B), meaning the system guarantees that mirrored data copies never reside on nodes within the same Fault Set - so if one Fault Set goes down, your data survives. A minimum of 3 nodes (C) is required because PowerFlex needs at least one node per Fault Set to maintain a valid replica triangle with sufficient rebuild capacity.

Why the distractors are wrong:

• A - Metadata for storage pools is managed by the MDM (Metadata Manager), not Fault Sets.
• D - Fault Sets exist within a single Protection Domain, but they are not limited to being only one per domain; multiple Fault Sets can exist in one Protection Domain, so "limited to" misrepresents the relationship.

Memory tip: Think of a Fault Set as a "failure blast zone" - nodes in the same physical rack share a Fault Set, and PowerFlex keeps data copies out of that zone. The "3-node minimum" maps to the classic distributed storage rule: you need at least 3 zones to survive 1 failure and still have quorum.

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