FC port goes offline due to multiple flaps in Fabric MetroCluster system
Applies to
- ONTAP 9
- Fabric-Attached MetroCluster
Issue
- The FC host adapter starts flapping on a node and is brought offline:
[Node-01: slifc_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 2b.
[Node-01: slifc_asyncd_0: fci.adapter.link.online:info]: Fibre Channel adapter 2b link online.
[Node-01: slifc_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 2b.
[Node-01: slifc_timeout_0: fci.link.error:error]: Could not recover link on Fibre Channel adapter 2b after 30 seconds. Taking the adapter offline.
[Node-01: slifc_intrd: fci.link.break:error]: Link break detected on Fibre Channel adapter 2b.
[Node-01: lhm_main: callhome.fc.al.link:alert]: Call home for FC-AL LINK_FAILURE (2b)
- The port status shows offline from the sysconfig -a output:
::> system node run -node <node> sysconfig -a
slot 2: FC Host Adapter 2b (Emulex XE201 rev. 48, <OFFLINE (hard)>)
Board name: 111-02451
Serial Number: FCXXXXX828
Firmware rev: 12.0.378.1
Host Port Id: N/A
FC Node Name: 2:000:00XXXX:4fXXXX
FC Port Name: 1:000:00XXXX:4fXXXX
SFP Vendor: FINISAR CORP.
SFP Part Number: FTLF8529P4BCVAN1
SFP Serial Number: P3AB3S2
SFP Capabilities: 4, 8 or 16 Gbit
Link Data Rate: N/A
- A lot of link failures can be seen on the switch port connected to the FC port on the node:
porterrshow:
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
0: 2.3g 3.4g 0 0 0 0 0 0 0 500 9 0 9 0 0 0 0 0 0
1: 2.6g 2.1g 0 0 0 0 0 0 0 9 38 0 4 0 0 0 0 0 0