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NSM100 reboot causes node multi-disk panic

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disk-shelves
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hw
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Applies to

  • NSM100
  • NSM100B
  • ONTAP 9

Issue

  • Single node reboots due to a multi-disk panic(MDP):

[Node2: config_thread: cf.multidisk.fatalProblem:error]: Node encountered a multidisk error or other fatal error while waiting to be taken over.

  • The node reboots normally, and no disk issues seen afterwards.
  • EMS shows storage ports going down at same time:

[Node2: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e3a: Link down, check cable.
[Node2: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e3a-30: Link down, check cable.
[Node2: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e3b: Link down, check cable.
[Node2: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e3b-30: Link down, check cable.

  • EMS shows message for a single module reboot:

[Node2: storlog_admin: sla.shelf.mod.reboot:notice]: Reboot event reported by module B in shelf: 0s.0.0, log: Wed Mar 18 02:08:50 2026 (    0+00:08:26.577); 02000233; U?; HAL; hal; 04; +++ Application version 0140 launching +++

  • Environment output shows the node that rebooted has 2 paths to the same module:

    External Ethernet Connector information by element:
      [1] MAC address: XX:xx:XX:xx:XX:xx  Attached MAC address: XX:xx:XX:xx:XX:xx 
          Attached port: e3a  Attached chassis: XX:xx:XX:xx:XX:xx 
          Attached manufacturer: Node1
          Cable serial number: XXXXXXXXXXXXXX Cable vendor name: Amphenol
          Cable id: QSFP28  Cable end: 0
          Cable technology: passive copper  Cable length: 0.5-1.0m
      [2] MAC address: XX:xx:XX:xx:XX:xx   Attached MAC address: <N/A>
          Attached port: <N/A>  Attached chassis: <N/A>
          Attached manufacturer: <N/A>
          Cable serial number: XXXXXXXXXXXXXX Cable vendor name: Amphenol
          Cable id: QSFP28  Cable end: 0
          Cable technology: passive copper  Cable length: 0.5-1.0m
      [3] MAC address: XX:xx:XX:xx:XX:xx   Attached MAC address: XX:xx:XX:xx:XX:xx 
          Attached port: e3a  Attached chassis: XX:xx:XX:xx:XX:xx 
          Attached manufacturer: Node2
          Cable serial number: XXXXXXXXXXXXXX Cable vendor name: Amphenol
          Cable id: QSFP28  Cable end: 0
          Cable technology: passive copper  Cable length: 0.5-1.0m
      [4] MAC address: XX:xx:XX:xx:XX:xx   Attached MAC address: XX:xx:XX:xx:XX:xx 
          Attached port: e3b  Attached chassis: XX:xx:XX:xx:XX:xx 
          Attached manufacturer: Node2
          Cable serial number: XXXXXXXXXXXXXX  Cable vendor name: Amphenol
          Cable id: QSFP28  Cable end: 0
          Cable technology: passive copper  Cable length: 0.5-1.0m

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