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CHW-3345: Multi Disk Panic for NS224 shelf after ONTAP upgrade

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Category:
ontap-9
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HW
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Issue

  • After an ONTAP upgrade, the controller experiences a multidisk panic (MDP).
  • Both NSMs (Node Storage Modules) undergo automatic firmware upgrades.
  • NSM A completes its firmware upgrade first but cannot serve data due to a hardware fault.
  • NSM B reboots for its firmware upgrade before NSM A is ready to serve data.
  • NSM A’s unavailability and NSM B’s reboot results in a multidisk panic (MDP) on the controller.

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