I have upgraded some installs to vSphere now. It usually goes quite well, but why does the ESXi 3.5 -> 4.0 upgrade take about half an hour? Swap out the VMKernel, retain the settings and reboot? Should be over in under a minute?
Does anyone know why it takes such a long time?
Best regards
Henrik
Are you using update manager?
It does lot of things for you -- putting host in maintainance mode, copying new binaries etc. That adds to the time -- it is the aggregate time that you are seeing here.
