MetroCluster FC-VI Adapter is flapping
Applies to
- ONTAP 9
- Fabric MetroCluster
- Brocade backend switch
Issue
- FC-VI adapter is flapping and is reporting errors in the EMS logs:
ClusterA::> fcvi.qlgc.rmt.link.down: FC-VI adapter link to partner node over port 1a is down
ClusterA::> fcvi.qlgc.rmt.link.down: FC-VI adapter link to partner node over port 1a is down
ClusterA::> fcvi.qlgc.rmt.link.up: FC-VI adapter link to partner node over port 1a is up
ClusterA::> fcvi.qlgc.rmt.link.down: FC-VI adapter link to partner node over port 1a is down
- Loss of signal and link failure errors reported in
porterrshow
output on the brocade backend switch on the ISL port(s):
porterrshow :
frames enc crc crc too too bad enc disc link loss loss frjt fbsy c3timeout
tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx
21: 3.9g 4.1g 0 0 0 0 0 0 0 2.0k 27 0 27 0 0 0 140 - Possible performance impact on clients