Date: Mon, 23 Dec 2019 17:57:01 +0000 From: Richard P Mackerras <mack63richard@gmail.com> To: Adam McDougall <mcdouga9@egr.msu.edu> Cc: freebsd-stable@freebsd.org Subject: Re: nfs lockd errors after NetApp software upgrade. Message-ID: <CAGfybS-a6n=Pkz8iBPj7BQ3=DbFoZRFENmy2wK3B=HzHm5dVWg@mail.gmail.com> In-Reply-To: <a33ad299-9ec6-0dc9-0926-32f20cb130c5@egr.msu.edu> 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> <b1182bbf-fd0b-a23d-1cc4-ddf9513bcb2e@egr.msu.edu> <YQBPR0101MB1427CE52BBA32A888443BFB4DD2D0@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <8A78F67B-C244-45CF-B9BF-D7062669B33B@cs.huji.ac.il> <YQBPR0101MB1427C9D4CF8918F10B6FD400DD2C0@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <AE8F5D6B-E7DA-4AB9-B909-7D362A6A406B@cs.huji.ac.il> <YQBPR0101MB14276E7F9C127374C3E36952DD2F0@YQBPR0101MB1427.CANPRD01.PROD.OUTLOOK.COM> <a33ad299-9ec6-0dc9-0926-32f20cb130c5@egr.msu.edu>
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Hi, We had some bully type workloads emerge when we moved a lot of block storage from old XIV to new all flash 3PAR. I wonder if your IMAP issue might have emerged just because suddenly there was the opportunity with all flash. QOS is good on 9.x ONTAP. If anyone says it=E2=80=99s not then they = last looked on 8.x. So I suggest you QOS the IMAP workload. Nobody should be using UDP with NFS unless they have a very specific set of circumstances. TCP was a real step forward. Cheers Richard
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