vSphere Update 1 and HP SIM agents

Phew - I'm glad I waited a little bit before installing vSphere update 1!

Turns out there's a nasty bug that will PSOD (purple screen of death) your vSphere hosts when updating if you are running HP SIM agents.

You can find the information here.

The document says that you should stop the HP agents on your host before updating. I can verify that this worked for me. I can also verify that not doing this will cause a PSOD - a colleague of mine had it happen.

This is exactly why I always wait at least a week after any major update... to see if it made the news.