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ATTO FibreBridge is unresponsive despite power cycling

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metrocluster
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Applies to

  • FAS/AFF systems
  • ONTAP 9
  • Fabric-Attached MetroCluster
  • ATTO 7500N bridges

Issue

  • ATTO bridge unreachable alerts are reported in the event logs:

[Node-01: dsbridge_admin: bridge.removed:info]: FC-to-SAS bridge MCC-sw1:8.126L0 [ATTO  FibreBridge7500N 2.96] S/N [FB7500N119XXX] was removed.
[Node-01: schmd: hm.alert.raised:alert]: Alert Id = StorageBridgeUnreachable_Alert , Alerting Resource = 20000010XXXXXX00 raised by monitor system-connect

  • The nodes transition to a "Mixed-Path" configuration:

::> system node run -node <node> sysconfig -a

NetApp Release 9.5P6: Wed Jul 10 19:00:56 EDT 2019
    System ID: 053XXXXXXX (Node-01)
    System Serial Number: 72XXXXXXXXXX4 (lNode-01)
    System Rev: A4
    System Storage Configuration: Mixed-Path

 

  • The bridge is missing from sysconfig -a output:

FC-to-SAS Bridge:
MCC-sw2:10.126L0      : ATTO     FibreBridge7500N 2.96  FB7500N110XXX
MCC-sw2:8.126L0       : ATTO     FibreBridge7500N 2.96  FB7500N108XXX
MCC-sw1:10.126L0      : ATTO     FibreBridge7500N 2.96  FB7500N112XXX   >>>>>> Reported ATTO bridge is missing

  • The ATTO bridge is unresponsive to Telnet and serial console access.
  • The bridge does not boot even after a power cycle.

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