nfs lockd errors after NetApp software upgrade.

[Richard P Mackerras]

Hi,
At ONTAP 9.3P6 there is a possible LACP group issue after upgrade. Have you
checked any LACP groups,
These should not be a problem but I assume network interfaces are at the
home ports, not on slower ports or something silly. It is marginally better
if the traffic goes direct to the node where the volume is but the
difference should nothing. Have you looked at the NetApp performance data?

If you are going to do wireshark tcpdumps then you might want to run them
from the NetApp as well.

https://kb.netapp.com/app/answers/answer_view/a_id/1029833/~/how-to-capture-packet-traces-%28tcpdump%29-on-ontap-9.2%2B-systems-



::> network tcpdump start -node <node> -port e0a -buffer-size 2097151

Let us know how you go,

Richard