Category: VMware

After patching our vCenter this afternoon from 8.0 Update 3d to 3e I encountered the following errors:

Cannot find vSphere HA master agent

vSphere HA agent for this host has an error: The vSphere HA agent is not reachable from vCenter Server

Broadcom has a fairly helpful guide which basically involves turn HA off and back on again.

However it doesn’t mention to wait at least 5 minutes after switching HA off. The first time I did the switch off and back on it didn’t fix the issue but after switching off, waiting 5 and then switching back on the hosts remediated and elected themselves correctly.

Dropping some real world experience in ordering this for Google searches.

This was announced back in October 2024 but these SKUs are definitely available via resellers as I’ve ordered in December.

Word of warning, quotes take forever to get. I had a chat with Broadcom at the Dell Technology Forum in November and that seemed to get the process moving but it was weeks between asking our reseller and getting the price back.

Your reseller may vary but everything is priced on the dollar so ours wouldn’t provide a quote for any longer than a year.