Shows the total number of memory units that are installed on your managed system. This number includes both active memory and inactive memory. Active memory includes both memory that was already active on your managed system when it came from the manufacturer and memory you have activated using Capacity on Demand. Inactive memory is memory that was included with your managed system, but has not been activated. Inactive memory can be activated permanently (Capacity Upgrade on Demand), temporarily (On/Off Capacity on Demand), or on a trial basis (Trial Capacity on Demand).