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D-PWF-OE-00 · Question #83

Which component is reconfigured when expanding metadata storage in PowerFlex?

The correct answer is C. Metadata Managers. Metadata Managers (MDMs) are the control-plane components in PowerFlex responsible for storing and managing all system metadata - including volume mappings, SDS locations, and cluster configuration. When the metadata workload grows (e.g., more volumes, SDSs, or hosts), the MDM…

PowerFlex Upgrades and Expansions

Question

Which component is reconfigured when expanding metadata storage in PowerFlex?

Options

  • AStorage Pools
  • BFault Sets
  • CMetadata Managers
  • DReplication Targets

How the community answered

(53 responses)
  • A
    4% (2)
  • B
    2% (1)
  • C
    87% (46)
  • D
    8% (4)

Explanation

Metadata Managers (MDMs) are the control-plane components in PowerFlex responsible for storing and managing all system metadata - including volume mappings, SDS locations, and cluster configuration. When the metadata workload grows (e.g., more volumes, SDSs, or hosts), the MDM cluster itself must be reconfigured (commonly expanding from a 3-node to a 5-node MDM cluster) to handle the increased metadata demand.

Why the distractors are wrong:

  • Storage Pools (A) are logical groupings of physical drives that manage data capacity, not metadata.
  • Fault Sets (B) define failure domain boundaries to protect against correlated hardware failures - they have no role in metadata storage.
  • Replication Targets (D) are destinations used in data replication workflows and are unrelated to metadata infrastructure.

Memory tip: Think of MDMs as the "brain" of PowerFlex - just as a brain grows more complex as a system scales, the Metadata Manager cluster is what you expand when the system's metadata needs more capacity. "More data about data = more MDMs."

Topics

#Metadata Managers#metadata storage#expansion#scalability

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