IP address manger conducts subnet scanning for every subnet created in it. If in case an IP address does not respond back, it changes the status of the address to available from used.
As a result, the detail of the address is lost and it becomes highly confusing. It is not feasible for an organisation to simply not scan its subnet and neither can they afford to loose the details.
Therefore, it will be very useful if IPAM could have a fetature where in, It scans the subnet and flushes the ip addresses not being used but sum how retains the data in the customary fields; that is entered manually.