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CONTAP-30735: SP serial link takes too long to drain during shutdown, causing a disruption

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ontap-9
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hw
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Issue

  • The Service Processor (SP) serial link with its ONTAP controller takes too long to drain during shutdown, causing a disruption.
  • An example of the panic message:
    PANIC: Shutdown taking longer than 930 seconds in process nodewatchdog on release <version>

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