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CHW-2395: A800 reboots unexpectedly with error unrecoverable error on internal PCIe switch

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ontap-9
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hw
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Issue

A A800 node might reboot unexpectedly with a panic against the internal PCIe switch that connects the internal shelf drives, with message:
Unrecoverable error(0x400000) in switch 111/8/0. in process thread taskq on release 9.10.1 (C) on Thu Apr 28 11:18:38 EDT 2022

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