NSX Product News

NSX Monthly Customer Advisory

In this communication, we detail the top trending issues with VMware NSX for vSphere and provide you with helpful information on how to address the issues while we build a permanent fix. Please review the left column of the chart below to search for issues specific to your environment, and click on the hyperlinks to access more detailed information on each.

For up-to-date Top Trending NSX issues, previous and current, please see KB Article Trending support issues in VMware NSX for vSphere 6.x (2131154).

Spotlight Issues

NSX for vSphere Version Component Issue Summary Resolution/Work-Around KB Number
1 6.2.x, 6.3.x NSXManager High disk and CPU usage in NSX Manager.

This issue occurs due to a high rate of IP address changes on virtual machines which causes frequent firewall publications and translations tasks to be triggered on the NSX Manager.

This is a known issue affecting VMware NSX for vSphere 6.2.x and 6.3.x. Currently, there is no resolution.

To work around this issue, contact VMware Support,and file a Support Request.



2 6.3.x NSXManager NSX Manager high CPU utilization triggered by many simultaneous vMotion tasks.

This is a known issue in VMware NSX for vSphere 6.2.7 and earlier and 6.3.x.

This issue is resolved in VMware NSX for vSphere 6.2.8.

To work around this issue, if you do not want to upgrade, do not use dynamic security group based on VM name or VM guest OS.

3 6.2.x, 6.3.x NSXManager / USVM Unable to power on VM’s, VM stuck at 0% or 35%.

This issue occurs in the environments installed with NSX for vSphere when NSX Manager or Guest Introspection VM’s are powered off or when NSX Guest Introspection USVM fails on a host.

To resolve the issue, ensure all the NSX management VM’s are powered on. KB:2150904
4 6.2.x, 6.3.x Controller Deploying NSX controller fails with the message “copying ovf” Operation failed on VC.Unable to resolve the hostname of the host by NSX Manager. Configure the DNS on NSX Manager to resolve the host name. KB:2150906
5 6.2.x DFW DFW Firewall User Interface (UI) constantly displays “Publishing rules”.

This issue occurs due to a stale entry in the NSX Manager firewall table for a host which does not exist.

This issue is not encountered in NSX for vSphere 6.2.5 or above version.

To resolve this issue, remove the stale entry in NSX manager database.

6 6.3.x Guest Introspection Guest Introspection USVM reports disk is full.You receive an alert that the /var/log disk space is full or almost full on one or more of the Guest Introspection USVMs. To work around this issue: Delete the Guest Introspection USVM. Click on resolve to redeploy. KB:2149856

Trending KB

Issue: Guest Introspection USVM reports disk is full

Affected Version: 6.3.x

Resolution: This issue is resolved in VMware NSX for vSphere 6.3.2, available at VMware Downloads. If you choose not to upgrade, as a workaround, delete the Guest Introspection USVM. Click on resolve to redeploy. For more details, please refer to: KB: 2149856.

VMware Recommended Release

VMware recommends NSX 6.2.6 for new deployments. The minimum version a customer should be running is NSX 6.2.2 based on critical bug fixes identified as having a general impact in an NSX environment. For the most up-to-date information, see the latest version of the NSX for vSphere 6.x Release Notes.

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