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D-PDM-DY-23 · Question #32

When integrating PowerProtect Data Manager with Kubernetes, what is an essential consideration for backup consistency?

The correct answer is C. State of persistent volumes. Persistent volumes (PVs) hold stateful data - databases, file systems, and application state - making their condition at backup time the decisive factor for a consistent, recoverable snapshot. If a PV is mid-write or in an inconsistent state when the backup runs, the resulting…

PowerProtect Data Manager Data Protection

Question

When integrating PowerProtect Data Manager with Kubernetes, what is an essential consideration for backup consistency?

Options

  • AKubernetes version compatibility
  • BContainer runtime used
  • CState of persistent volumes
  • DNetwork policies applied

How the community answered

(25 responses)
  • A
    16% (4)
  • B
    4% (1)
  • C
    72% (18)
  • D
    8% (2)

Explanation

Persistent volumes (PVs) hold stateful data - databases, file systems, and application state - making their condition at backup time the decisive factor for a consistent, recoverable snapshot. If a PV is mid-write or in an inconsistent state when the backup runs, the resulting backup may be corrupted or unrestorable, regardless of how the rest of the Kubernetes environment is configured.

Why the distractors are wrong:

  • A (Kubernetes version compatibility): Version compatibility is an installation/support concern, not a backup consistency concern during an active backup operation.
  • B (Container runtime): Whether you're using containerd, CRI-O, or Docker shim doesn't affect whether the data on a volume is in a consistent state at backup time.
  • D (Network policies): Network policies govern traffic flow between pods; they have no bearing on whether data written to a volume is consistent at the moment of backup.

Memory tip: Think "backup consistency = data consistency." In any backup scenario - Kubernetes or otherwise - the data (where it lives: persistent volumes) is what must be consistent. Everything else (versions, runtimes, networking) is infrastructure, not data state.

Topics

#Kubernetes backup#persistent volumes#backup consistency#container storage

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