After completing a cluster switch migration (CN1610 to NX3132) and adding some new nodes to an ONTAP cluster, whilst waiting for checkout, this issue was identified:
::> system health status show
Status
------
Degraded
::> system health subsystem show
Subsystem Health
------------- ------
Switch-Health degraded
By running a 'system health show' it was quite clear that the problem was one of the 10GbE SFP split outs on a newly installed 40GbE QSFP -> 4*10 GbE SFP splitter cable.
On the NX3132 switch, running -
show interface ethernet1/1/3
- showed over 10'000 input errors (over the space of about an hour.)
Moved all the cluster LIFs off the affected cluster ports, removed the cable, replaced the cable, returned the LIFs to home, and ran -
clear counters interface all
- to reset the counters.
Waited for a bit to see if any errors returned (which they did not.)
Then re-ran the system health status show to check everything was good and it was!
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