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How to determine correct LUN type or diagnose misaligned I/O based on LUN type on Windows hosts

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flexpod-with-infrastructure-automation
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Applies to

  • ONTAP 9
  • Data ONTAP 7 and earlier
  • FlexPod

Description

  • Observed poor performance characterized by a large number of disk accesses per KB of data sent or received.
  • Disks seem to be working too hard for the apparent workload.
  • This article also covers the different LUN types and when to use which type, even if no performance issue is seen.

 

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