NSX v2t migration, vSphere 7.0.2 and HPE serverhardware – Be aware! (Powershell fixscript available)

I experienced a particular use case, which I want to inform you about!
When migrating from NSX for vSphere (NSXv) to NSX-T using the migration coordinator, running vSphere 7.0.2 on HPE Gen9 of HPE Gen10 server-hardware, you may (but probably will) experience host migration failures.

This is due some old HPE VIBs which are not correctly removed when you upgraded to vSphere 7.0.2.
See the following knowledge base articles: https://kb.vmware.com/s/article/84466 -and- https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-a00116792en_us

Before starting the NSX v2t host migration phase, from all ESXi hosts, remove the old VIBs and reboot them.

When you have large environment, this can be time-consuming task and there is automation to the rescue!
I’ve used my scripting wizardy to resolve this issue in an automated way using PowerShell:

This script includes a few fancy parts:
– The script grants itself SSH access to the ESXi hosts (without having to know the ESXi host root account credentials).
This can be helpful for other scenario’s where you have to bulk execute command’s on ESXi host and you don’t have access to the root account credentials.
– a rolling reboot procedure for VSAN enabled clusters.

You can find the script here: https://github.com/Datacenter-Dennisch/PowerCLI-scripts/blob/master/HPEfixforNSXv2tscript.ps1

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