VCF Upgrade - Pre-Check Failures in NSX In-Place Upgrade for non-vLCM clusters

Products

• VMware SDDC Manager

Issue/Introduction

NSX In-Place Upgrade pre-checks fail for one of the following reasons,

• Insufficient Free memory which can lead to failure.
• Service insertion is enabled.

Environment

Environments having a high scale which might lead to memory constraints.

In-place upgrade is selected

Cause

• Insufficient Free memory which can lead to failure.

Pre-check name: Buddy stats check - Ensure sufficient read-only memory is available to dual load NSX VIBs. It checks if 2MB buddy memory available on each NUMA node

 

• Service insertion is enabled.

Pre-check name: serviceInsertionCheck - SI configured on the host

Resolution

• Insufficient Free memory which can lead to failure.

Below are the two options:

           a) VMotion VMs out to free up memory space or reboot to defragment the memory.
           b) Change the upgrade mode to maintenance-mode then perform the upgrade.

 

• Service insertion is enabled.

Disable SI firewall rules or use maintenance-mode upgrade.

Additional Information

Generally, pre-checks indicate any potential issues for the In-Place upgrade mode, it is suggested to proceed with the maintenance-mode upgrades for those domains