NSX hosts upgrade stuck at 10%

Products

• VMware NSX

Issue/Introduction

NSX hosts upgrade stuck at 10% 

Manually moved the affected host into 'Maintenance Mode', but it got stuck at 17%.

Environment

VMware NSX

Cause

 VMs still running on the host; therefore, host can’t enter maintenance mode.

Resolution

• VMs are still running, the upgrade will stall because the host can’t go into Maintenance Mode, which is required for NSX host upgrades.
• Login to vCenter and identify which VMs if any are still running on the ESX host. 
• Manually migrate the VMs to a new host.

•      If the migration fails, check to see if all VM network adapters are connected to a valid network. 

•             Once the missing network is added to the VM network adapter, the VM will successfully migrate off the host. 

•     The ESX host should not be in maintenance mode and the upgrade should resume.

 

 

Additional Information

• Identified that VMs were still running in the host.
• Attempted to manually migrate those VMs, but one of the network adapters was not connected to a network, which caused the migration to fail.
• Once the missing network was added to the virtual network adapter, the VM successfully migrated off the host, allowing the host to transition into 'Maintenance Mode' without further issues.
• As a result, the ESXi host completed the upgrade successfully.