CRC on the MetroCluster IP switches
Applies to
- ONTAP 9.x
- MetroCluster IP
- MetroCluster IP switches
Issue
Excessive network errors like the ones below reported in the event log:
[node032: kernel: iscsi.session.stateChanged:notice]: iSCSI session state is changed to Reconnecting ...
[node031: doneq0: scsi.mcc.adt.ioTransportError:error]: mcc_adt[6] - Transport error during execution of command ...
[node032: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0a on node node032 is reporting a high number of observed hardware errors, possibly CRC errors.
[node032: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: CRC Errors Detected - High CRC errors detected on port e0a node node032