I'm using ESXi 5.5 and vCenter 6.5 with vSphere Update Manager. I successfully staged about 20 updates (new host deploy) and set it to remediate. I know this can take a long time, but the percentages are static for many hours. Is there a way to check (via command line or otherwise) if it's actually hung or if it's doing anything?
It would be nice to also get a more realistic idea about how much it's got to go, but that isn't essential, I mainly want to be sure that I can leave it be, and it's working properly on the patches, even if slowly.
On Windows I can watch update-related files being accessed and update-related processes I/O counts, in task manager/perfmon, as they do their disk and process I/O, and on Linux or BSD I can use various well-known tools (but they aren't included in ESXi). What's the equivalent with command line or other tools, in vSphere?