Filter the host Inventory - hide / un-hide, remove
The Host Discovery process populates your inventory with hosts it finds. Often, discovery policies are designed to discover an IP address range. Host Discovery creates a record for every IP address in the range, even if it's not in use. Therefore, invalid IP addresses will appear in your Host Inventory. In addition, Discovery may find printers, routers, or switches, or other devices that aren't relevant for host data collection.
To filter your host inventory to include only hosts for which you want data collected, use the following options:
Hide - Select a host in the inventory and click at the bottom of the window. When you Hide a host, it will not appear in your search results.
Unhide - If you list hosts that have been hidden, the button will be toggled to Unhide. Use the Advanced Search Parameters option, Search hidden hosts, to view a list of hidden hosts.
Remove - Select a host in the inventory and click at the bottom of the window. When you choose to remove a host, if you execute the Discovery Policy again, it will re-add it to the inventory. You may have an IP address that is now associated with a device that is different from the one that was discovered.