I have an 8 ESXi vmware cluster. the 8th server is currently offline to vCenter because hostd will not stay started. I have a case open with VMWare on this. Because of this my VMWare cluster is not healthy. That 8th server is on ESXi 6.0u2. The 7th server is also on that version, but servers 1 through 6 are on 5.0 patch 12. I wanted to scan server 6 so I could remediate and update its ESXi to 6.0u2, but the scan always fails.
I am wondering if this is because the cluster is not healthy and there is an HA issue? I tried the scan in both the C# and the web client. Both times I get "VMware vSphere UpdateManager had an unknown error. Check the events and log files for details."
Where are the events and log files I can check?
Windows vCenter server 6.0 update 2
VUM + VR 6.1.1 + SRM 6.1 + vROPS 6.1
6 ESXi 5.0 patch 12
2 ESXi 6.0 update 2 (though one is not responding)