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Is there a resource allocation priority between SnapMirror and FlexGroup rebalancing in ONTAP

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Applies to

ONTAP 9

Answer

  • No,there is no explicit resource allocation priority between SnapMirror and FlexGroup rebalancing.
  • SnapMirror and FlexGroup rebalancing are managed as independent processes within ONTAP.
  • Both processes share physical resources (CPU, memory, disk I/O, network bandwidth), which can lead to temporary resource contention if run simultaneously.
  • ONTAP internally controls I/O processes to prevent significant performance degradation or errors.

Additional Information

Considerations for Running FlexGroup Rebalancing:
  • Running FlexGroup rebalancing during high I/O load can potentially slow down SnapMirror transfer speeds.
  • To avoid conflicts, schedule FlexGroup rebalancing during periods of lower SnapMirror activity or adjust SnapMirror schedules to avoid overlap.
  • FlexGroup rebalancing should ideally be performed between scheduled SnapMirror operations to minimize impact.
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