https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145263#M32546 <P>The half duplex is effectively cosmetic, but we still have issue with the NFS.&nbsp; We are using vmxnet3.&nbsp; Storage access to the NFS datastore is on for 25-30sec. and off for 25-30sec.&nbsp;</P> <P>I have the issue while doing storage vmotion on and off the NFS datastore and also when generating IO from the guest OS VM.</P> <P>I don't have the issue when generation IO from the guest Os on the local datastore.</P> Thu, 06 Dec 2018 16:59:55 GMT martin_thibert 2018-12-06T16:59:55Z https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145196#M32543 <P>We are trying to run a VM on an NFS datastore presented by Ontap Select 2 nodes cluster.&nbsp; Everything is working except that the VM has access to the disks every minutes for 30 seconds.&nbsp; The ethernet ports on the ontap select appliance are shown has half duplex even if it's configured for full duplex.&nbsp; ESX host VMnic are Fullduplex.&nbsp;</P> <P>Anyone has idea on how to fix this issues?</P> <P>Thk's!</P> <P>&nbsp;</P> <P>Ontap select 9.5RC1</P> <P>VMware ESXi, 6.7.0, 10302608</P> <P>standard vswitch&nbsp;</P> <P>&nbsp;</P> <P>&nbsp; Node: ONTAP-02<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Port: e0b<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Link: up<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MTU: 9000<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Auto-Negotiation Administrative: false<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Auto-Negotiation Operational: false<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Duplex Mode Administrative: full<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Duplex Mode Operational: half<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Speed Administrative: 10000<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Speed Operational: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Flow Control Administrative: none<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Flow Control Operational: none<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MAC Address: 00:a0:b8:f6:e4:fc<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Port Type: physical<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interface Group Parent Node: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interface Group Parent Port: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Distribution Function: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Create Policy: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Parent VLAN Node: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Parent VLAN Port: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VLAN Tag: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remote Device ID: -<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IPspace Name: Default<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Broadcast Domain: Default<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MTU Administrative: 9000<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Port Health Status: healthy<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Ignore Port Health Status: false<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Port Health Degraded Reasons: -</P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 04 Jun 2025 13:03:37 GMT https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145196#M32543 martin_thibert 2025-06-04T13:03:37Z https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145203#M32545 <P>Sounds like this may be cosmetic and there are BUGs relating to this, but they are supposed to have been fixed. (See below) . Have you tested the throughput to see if it is actually running at half? Which type of VMnics are you using? E1000 or VMXNET3.&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> <DIV class="BubbleStyle_MessagesContainer"> <DIV id="msg_id_3432" class="BubbleStyle_MessageContainer"> <DIV><SPAN><A href="https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&amp;Display=1110020" target="_blank">https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&amp;Display=1110020</A></SPAN></DIV> </DIV> </DIV> Wed, 05 Dec 2018 01:57:24 GMT https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145203#M32545 GregoryH 2018-12-05T01:57:24Z https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145263#M32546 <P>The half duplex is effectively cosmetic, but we still have issue with the NFS.&nbsp; We are using vmxnet3.&nbsp; Storage access to the NFS datastore is on for 25-30sec. and off for 25-30sec.&nbsp;</P> <P>I have the issue while doing storage vmotion on and off the NFS datastore and also when generating IO from the guest OS VM.</P> <P>I don't have the issue when generation IO from the guest Os on the local datastore.</P> Thu, 06 Dec 2018 16:59:55 GMT https://community.netapp.com/t5/ONTAP-Discussions/Ontap-select-Half-duplex-and-NFS-issues/m-p/145263#M32546 martin_thibert 2018-12-06T16:59:55Z