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What is Consistency group

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Applies to

  • ONTAP
  • AFF/FAS

Answer

  • A consistency group is a collection of volumes that are managed as a single unit.
  • In ONTAP, consistency groups provide easy management and a protection guarantee for an application workload spanning multiple volumes.
  • You can use consistency groups to simplify your storage management.
  • Consistency groups facilitate application workload management, providing easily configured local and remote protection policies and simultaneous crash-consistent or application-consistent snapshots of a collection of volumes at a point in time.
  • Snapshots of a consistency groups enable an entire application workload to be restored.
  • Consistency groups can exist as individual entities—​as a collection of volumes—​or in a hierarchical relationship, which consists of other consistency groups.

Additional Information

  • Consistency groups support any FlexVol volume regardless of protocol (NAS, SAN, or NVMe) and can be managed through the ONTAP REST API or in System Manager under the Storage > Consistency Groups menu item.
  • Beginning with ONTAP 9.14.1, consistency groups can be managed with the ONTAP CLI.
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