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ATTO fibrebridge FC port down

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metrocluster
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Applies to

  • MetroCluster FC
  • ONTAP 9
  • ATTO FibreBridge 7500N/7600N
  • ATTO FibreBridge 6500N

Issue

  • Bridge dumpconfig output shows the FC port as down and data rate and connection mode show as N/A:
; Port    Status
;===============
1      Down
2      Up
 
FC1 Data Rate         = N/A
FC1 Connection Mode   = N/A
 
  • porterrshow on the Brocade switch shows errors on the port connected to the bridge FC port and the SFP in the switch port shows low RX power:
admin>  porterrshow 1
frames      enc    crc    crc    too    too    bad    enc   disc   link   loss   loss   frjt   fbsy  c3timeout    pcs    uncor
tx     rx      in    err    g_eof  shrt   long   eof     out   c3    fail    sync   sig                  tx    rx     err    err
1:    3.8g   1.5g   0    289    277      0      0     12      0     15      0      0      1      0      0      0      0      8.5k   0
 
RX Power:    -25.7   dBm (2.7  uW)
TX Power:    -2.8    dBm (529.4 uW)
 
  • FC port of ATTO bridge is offline and the following events are reported in the event logs:

[Node-n1: dsbridge_admin: fc.bridge.fc.port.alert:alert]: Fibre Channel FibreBridge7500N Bridge ATTO_20000010XXXXXXX00 S/N: FB7500N10XXXX WWN: 20000010XXXXXXX00 FC Port FC_PORT2 offline.
[Node-n1: schmd: hm.alert.raised:alert]: Alert Id = StorageBridgePortDown_Alert , Alerting Resource = 22000010XXXXXXX00 raised by monitor system-connect
[Node-n1: svc_queue_thread: callhome.dsk.redun.fault:error]: Call home for DISK REDUNDANCY FAILED

[hostname: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process schm: StorageBridgePortDown_Alert[210000xxxxxxxxx].

  • Port reported as offline:

storage bridge show -fields fc-port-index-list,fc-port-oper-state-list shows one FC port as offline:
Example:
name fc-port-index-list fc-port-oper-state-list
----------------- ------------------ -----------------------
ATTO_200000xxxxxxx4c0 1,2 offline,online <<<< FC port 1 offline
ATTO_200000xxxxxxx480 1,2 online,online

  • The system transitions to "Multi-Path HA" from "Quad-Path HA" configuration.

[Node-n1: dsa_disc: shelf.config.tompha:info]: System has transitioned to multi-path HA attached storage

 

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