StorageBridgePortDown_Alert reported in Stretch MetroCluster system

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Visibility:: Public

Votes:: 0

Category:: metrocluster

Specialty:: metrocluster

Last Updated:

Applies to

ONTAP 9
Stretch MetroCluster

Issue

One of the FC ports on a node is down:

slot 1: FC Host Adapter 1c (Emulex XE201 rev. 48, <DOWN>)

Board name: 111-02455

Serial Number: FCXXXXXX77

Firmware rev: 11.4.277.0

Host Port Id: N/A

FC Node Name: 2:000:00109b:25b9bc

FC Port Name: 1:000:00109b:25b9bc

SFP Vendor: AVAGO

SFP Part Number: AFBR-57F5MZ-NA1

SFP Serial Number: AA1XXXXX1RD

SFP Capabilities: 4, 8 or 16 Gbit

Link Data Rate: N/A

The ATTO bridge FC port that is connected to the above node port is also down and the bridge reports the below error:

ATTO_161.XXX.XX.XXX(200000XXXXXXXXX):FC_PORT_1 is Offline.

Cluster1::> storage bridge show

                                       Is        Monitor

Bridge                   Symbolic Name Monitored Status  Vendor Model                 Bridge WWN

------------------------ ------------- --------- ------- ------ --------------------- ----------------

ATTO_161.XXX.XX.XX4      Node1-br1

                                       true      ok      Atto   FibreBridge 7500N     200XXXXXXXXX7c00

ATTO_161.XXX.XX.XX5      Node1-br2

                                       true      ok      Atto   FibreBridge 7500N     200XXXXXXXXX7900

ATTO_161.XXX.XX.XX6      Node1-br3

                                       true      ok      Atto   FibreBridge 7500N     200XXXXXXXXX6600

ATTO_161.XXX.XX.XX7      Node1-br4

                                       true      error   Atto   FibreBridge 7500N     200XXXXXXXXX7b40                      

4 entries were displayed.

The affected node is transitioned to "Mixed Path" configuration:

NetApp Release 9.3P7: Wed Jul 25 06:16:06 EDT 2018

System ID: 0538031811 (Node-01)

System Serial Number: 45XXXXXXXX8 (Node-01)

System Rev: A4

System Storage Configuration: Mixed-Path

StorageBridgePortDown_Alert and FC-AL LINK_FAILURE alerts reported in the event logs:

[Node-01: slifc_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 1c.

[Node-01: lhm_main: callhome.fc.al.link:alert]: Call home for FC-AL LINK_FAILURE (1c)

[Node-01: schmd: hm.alert.raised:alert]: Alert Id = StorageBridgePortDown_Alert , Alerting Resource = 200XXXXXXXXX7b40 raised by monitor system-connect

[Node-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process schm: StorageBridgePortDown_Alert[200XXXXXXXXX7b40].

The bridge health is degraded:

Cluster1::> system health subsystem show

Subsystem Health

----------------- ------------------

SAS-connect ok

Environment ok

Memory ok

Service-Processor ok

Switch-Health ok

CIFS-NDO ok

Motherboard ok

IO ok

MetroCluster ok

MetroCluster_Node ok

FHM-Switch ok

FHM-Bridge degraded

SAS-connect_Cluster ok

13 entries were displayed.

The link between the affected FC ports on the node and ATTO bridge remain down despite SFP and cable replacement.
On swapping the cables between a known good node port and the affected ATTO, the link on the ATTO bridge comes online.