ATTO Bridge reboots due to flapping FC port
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- Category:
- metrocluster
- Specialty:
- metrocluster
- Last Updated:
- 4/25/2024, 9:50:16 AM
Applies to
- Fabric-attached MetroCluster
- ONTAP 9
- ATTO FB7500N
- ATTO Firmware 3.35 and below
Issue
An ATTO Bridge reboots unexpectedly due to a flapping FC port.
Errors can be seen on the ATTO Bridge.
Example:
08:18:22 07/30/21 INFO FC Async Event, Link Down, PTP/Fabric, 16Gb on FC Port 1
08:18:22 07/30/21 INFO FC Port 1 Link Down detected.
08:18:22 07/30/21 INFO FC Loop Is Not Operational on FC Port 1
08:18:22 07/30/21 INFO FC Port ID 0x000000 [0x000] LogOut Pt:00000000000000000
08:18:22 07/30/21 INFO FC Port ID 0x000000 [0x000] LogOut Pt:00000000000000000
08:18:22 07/30/21 INFO Initiator 0000000000000000 logged out.
08:18:22 07/30/21 INFO Initiator 0000000000000000 logged out.
08:18:22 07/30/21 CRIT FC Chip Error, Status: 0x00000000, Error1: 0x00000000,
08:18:22 07/30/21 CRIT Error2: 0x00000000 on FC Port 1
08:18:22 07/30/21 CRIT Software Interrupt Exception Detected (SWI) (001H)get fcporterrors all ; Fibre Channel Error Counts ; Port | Link Failures | Sync Loss | Signal Loss | Invalid Tx | Invalid CRC ;========================================================================== 1 6110 44460 0 403860 144 2 1 4 0 28 0
Further errors can be seen in the EMS log on the cluster(s).
Example:
Fri Aug 13 13:54:59 +0200 [ClusterA-N1: dsbridge_admin: fc.bridge.fc.port.alert:alert]: Fibre Channel FibreBridge7500N Bridge ATTO_0000000000000000 S/N: FB7500N000000 WWN: 0000000000000000 FC Port FC_PORT1 offline.
Fri Aug 13 14:03:06 +0200 [ClusterA-N1: dsbridge_admin: fc.bridge.fc.port.notice:notice]: Fibre Channel FibreBridge7500N Bridge ATTO_0000000000000000 S/N: FB7500N000000 WWN: 0000000000000000 FC Port FC_PORT1 connected. 