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Presenting LUN to Windows 2012 lost access to IBM storage

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Applies to

  • ONTAP
  • Microsoft Windows 2012
  • IBM device specific module (DSM)

Issue

During new deployment and initial testing in a mixed vendor environment presenting a new LUN causes existing LUN to disconnect
 
Example:
IO operation at logical block address xyz for Disk X (PDO name: \Device\MPIODiskX) was retried.

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