Date: Thu, 19 Dec 2019 21:43:42 +0000 From: Richard P Mackerras <mack63richard@gmail.com> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: Rick Macklem <rmacklem@uoguelph.ca>, "stable@freebsd.org" <stable@freebsd.org> Subject: Re: nfs lockd errors after NetApp software upgrade. Message-ID: <CAGfybS9Rm-9q5MqAybPtAERAvD7NQSXfz_PvWVsBVHcst1UUnw@mail.gmail.com> In-Reply-To: <8770BD0D-4B72-431A-B4F5-A29D4DBA03B1@cs.huji.ac.il> References: <EBC4AD74-EC62-4C67-AB93-1AA91F662AAC@cs.huji.ac.il> <YQBPR0101MB1427411AFE335E869B9CF022DD530@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <0121E289-D2AE-44BA-ADAC-4814CAEE676F@cs.huji.ac.il> <CAGfybS-3Rvs57=oGFEfii_9a=aWxPr6dEq1Y1LqHbLXK1ZKmXA@mail.gmail.com> <YQBPR0101MB1427F9BE658B9A46C7E08335DD520@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <854B6E5A-C6BC-44B3-A656-FC9B8EF19881@cs.huji.ac.il> <YQBPR0101MB1427F445F1F1EAF382E5131ADD520@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <8770BD0D-4B72-431A-B4F5-A29D4DBA03B1@cs.huji.ac.il>
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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
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