with Engine server caching both types of data. By default, inventory data is refreshed every 60sec and the utilization data is refreshed every 5min.
> * the errors/warning cube doesn't update so much even after cleaning and waiting an hour or 2
The Dashboard page doesn't refresh its data automatically (yet) but there's a refresh button & "Last Updated" label in the top left corner. As mentioned above, the top-most status cards should have their (cached) data updated every 60sec.
> * Cluster cube shows "1 cluster" but also "N/A" even when my cluster is up with 2 machines (with DNS names).
The "N/A" text shown in Cluster status card simply means that we aren't tracking status (up/down/etc.) for the Cluster object within the Dashboard.
> * The memory calculation is wrong - it still shows 503.5 GB even if 1 node is down for maintenance (which means I need to see something like 220GB)
This is part of the utilization card, which means it takes its data from DWH. As Greg wrote, please check your DWH setup
. Are you running DWH on Engine machine or on a different machine?