Which component is upgraded first during a PowerFlex cluster upgrade?

Question

Options

• AMetadata Managers
• BStorage Data Servers
• CFault Sets
• DCluster Nodes

• A
  92% (33)
• C
  6% (2)
• D
  3% (1)

Explanation

Metadata Managers (MDMs) are upgraded first because they serve as the control plane of the PowerFlex cluster - they manage cluster state, coordinate operations, and must be running the newer version before any other components can safely transition. Upgrading MDMs first ensures the cluster's orchestration layer is compatible with the upgraded state before data-serving components are touched.

Why the distractors are wrong:

• B. Storage Data Servers (SDS) - SDS nodes hold the actual data and are upgraded after MDMs, since MDMs must be in place to orchestrate and validate the SDS upgrade safely.
• C. Fault Sets - Fault sets are a logical grouping/placement concept for protecting against correlated failures, not a distinct upgrade target in the sequence.
• D. Cluster Nodes - Too generic; the upgrade sequence targets specific roles (MDM → SDS → SDC), not nodes as an undifferentiated group.

Memory tip: Think "Management before Data" - MDMs (Metadata Managers) lead the upgrade because managers always go first to prepare the environment for everyone else.

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