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CLAM takeover occurs due to both cluster ports down

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • Connectivity, Liveliness and Availability Monitor (CLAM)

Issue

  • CLAM panic due to both cluster ports of the node going down
PANIC: Received PANIC packet from partner, receiving message is (Coredump and takeover initiated because Connectivity, Liveliness and Availability Monitor (CLAM) has determined this node is out of quorum.) in SK process gop_eq_thread on release 9.9.1P15 (C) on Sun Jun 22 02:24:18 JST 2025
 
[?]  Sun Jun 22 02:23:19 +0900 [NODE: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e0a: Link down, check cable.
[?]  Sun Jun 22 02:23:19 +0900 [NODE: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e0b: Link down, check cable.
 
  • Cluster ports recovers automatically.
slot 0: 10 Gigabit Ethernet Controller IX5-SFP+
e0a MAC Address:    d0:39:ea:1d:c4:0a (auto-10g_twinax-fd-up)
SFP Vendor:         CISCO-JPC
SFP Part Number:    P3057U305000-1
SFP Serial Number:  JPC233600S8-CH1
e0b MAC Address:    d0:39:ea:1d:c4:0b (auto-10g_twinax-fd-up)
SFP Vendor:         CISCO-JPC
SFP Part Number:    P3057U305000-1
SFP Serial Number:  JPC233600YL-CH1
Device Type:        X550EM
Firmware Version:   1.13-7.1

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