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ONTAP EMS reference
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ctrl.link events

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ctrl.link EMS events occur when ONTAP encounters issues associated with HA interconnect link quality.

Severity

ERROR

Description

This message occurs when the software detects either symbol errors or out-of-sequence errors on HA interconnect links.

Corrective Action

If possible, replace the degraded interconnect cables and reenable automatic switchover by using the "options -option-name rdma.link_monitor -option-value on" command. If the problem persists after replacing both interconnect cables, replace the interconnect hardware on both nodes.

Syslog Message

Link errors detected on card in slot %d. Number of symbol errors (Port1:Port2): %d:%d; Number of OOS errors(RQ:SQ): %d:%d.

Parameters

slot (INT): Slot number of the HA Interconnect device.
sym_err1 (INT): Symbol errors on the first port.
sym_err2 (INT): Symbol errors on the second port.
rq_oos (INT): Out-of-sequence errors on the receive queue.
sq_oos (INT): Out-of-sequence errors on the send queue.

Severity

INFORMATIONAL

Description

This message occurs when the software initiates a switchover of the active interconnect link, which has been declared degraded.

Corrective Action

If possible, replace the degraded interconnect cable and reenable the automatic switchover by using the "options -option-name rdma.link_monitor -option-value on" command. If the problem persists after replacing both the interconnect cables, replace the interconnect hardware on both nodes.

Syslog Message

Link switchover initiated to switch active interconnect link %s.

Parameters

degraded_port_name (STRING): Port name of the degraded link that is being switched from.