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E-series E4000 controller reporting inter controller communication failure

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Applies to

  • NetApp E-Series
  • E4000 
  • StorageGRID

Issue

Recovery guru reports: Failure Entry 2: AUX_ALT_COMM_LINK_ERROR-Recovery Failure Type Code: 503

From controller shell: ip -s link command output shows alt0 links to be  UP from both controllers
 

diag@eos-a:~$ ip -s link show alt0
3: alt0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether d0:39:ea:c4:e9:91 brd ff:ff:ff:ff:ff:ff
    RX:  bytes packets errors dropped  missed   mcast
      92947325   72245      0       0       0       0
    TX:  bytes packets errors dropped carrier collsns
      22679899   33111      0       0       0 0

From ASUP log bundle STATE-CAPTURE-DATA cmgrShow output we see link up as well

InternalNetworkLink: this(0x1c564c010)
m_Port               0
m_State:             up
m_DownCount:         0
m_CritMelLogged:     false
m_ErrorReported:     true

 

 

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