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Volume Auto Grow policy Not Expanding Volumes as Expected

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ontap-9
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CORE
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Applies to

  • Volumes with Auto-Grow (Autosize) enabled
  • NetApp ONTAP 9.16.1P5 (and similar ONTAP 9.x versions)
  • Cloud Volumes ONTAP (CVO)

Issue

Volumes configured with the Auto-Grow (autosize) policy were not expanding as expected, resulting in client-side errors such as:

  • "There is not enough space. You need additional space to copy these files."
  •  ENOSPC (No space left on device)

Example of events:

  • Multiple “No space left on device” errors on volumes 
  • Auto-Grow triggered in very small increments, not keeping up with application write bursts
  • Manual intervention required to increase volume size

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