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Panic due to Cluster ports e0a/e0b going down

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Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

FAS2552

Issue

  • Node panics due to loss of cluster network communication when e0a / e0b go down
  • The panic message observed is:

       Panic_Message: prod/common/wafl/boot.c:3102: Assertion failure. in SK process shutdown_thread0

  • Following the panic, the HA partner performs a takeover. The affected node remains reachable via the HA interconnect (HA‑IC) but is not accessible through the cluster network.

::> storage failover show
                              Takeover
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
Node-01       Node-02           -      Up. Node accessible via HA-IC, but
                                       cluster access failed
Node-02      Node-01           true    Connected to Node-01. Waiting for
                                       cluster applications to come online
                                       on the local node. Offline
                                       applications: mgmt, vldb, vifmgr,
                                       bcomd, crs, scsi blade, clam.

  • The node is reachable via SP, but both cluster ports (e0a/e0b) report no carrier, indicating loss of physical cluster connectivity

run local -c ifconfig

e0a: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=4ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP> ether 00:a0:98:e4:2a:df inet 169.254.64.88 netmask 0xffff0000 broadcast 169.254.255.255 Services: 0x0000000000000002 Vserver ID: -3 media: Ethernet autoselect (autoselect <full-duplex,rxpause,txpause>) status: no carrier. <---

e0b: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=4ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP> ether 00:a0:98:e4:2a:e0 inet 169.254.39.109 netmask 0xffff0000 broadcast 169.254.255.255 Services: 0x0000000000000002 Vserver ID: -3 media: Ethernet autoselect (autoselect <full-duplex,rxpause,txpause>) status: no carrier <---

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