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@@ -486,3 +486,9 @@ once, in the middle of a 4x parallel NFS load. Suspects: PDU/segment power
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trip, or a physical event; nothing sm121 did can take a node's management NIC
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down (the serve had already passed container start and was at the API-wait
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stage). Polling for recovery; Boot D test is the only remaining bisect step.
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+HA check (~07:38): switch.dgx1-4 = ON, sw6_mt/sw7_fan ON (dgx5-8 off as
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+expected). So the nodes are powered but the 88.x management path is dead -
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+either the nodes hung/crashed under load (powered but kernel dead) or the
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+management segment/switch failed. Cannot distinguish from the Mac (no route
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+to 200.x). Physical check needed: power-cycle the nodes or check the
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+management switch.
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