When diagnosing an issue we frequently have to go back to the customer to find out how much physical memory is on the machine, for example by collecting mdiag, or simply by asking. This delays diagnosis and creates extra work for us and for customer. It would be helpful to include system memory as part of serverStatus, so that it would be present in FTDC (>=3.2) or manually collect serverStatus timeseries (3.0). This information is already collected and readily available in the SystemInfo object.