6. Auto-Discovery of Devices

Zenoss can SNMP-walk the entire network and the routing tables and then model each individual device to add them all at once to the database. The daemon that does this is called ZenDisc. To perform auto-discovery, the machine on which Zenoss is installed must have an SNMP agent running.

To add all of the devices on a given network or subnetwork into the Zenoss system:

  1. From the left navigation menu select networks.

    The Networks Overview page appears.

    Figure 9.4. Networks Overview Tab

    Networks Overview Tab

  2. Click the checkbox next to the network you want to add all of the devices from. You can also use Subnetworks table menu to add a new network to the list.

  3. Once you have selected the network, open the Subnetworks table menu and select Discover Devices.

  4. The Discover Device page will appear showing you the status of all the device collections going on.

    Figure 9.5. Auto-Discovery of Devices

    Auto-Discovery of Devices

    This command will first model the monitoring machine and then walk through the routing tables of all routers it can find. Auto-discovery will go as far as valid SNMP access is found or until a network is discovered in the DMD that has its zAutoDiscover property set to False.

    Routers discovered through this process will be placed in the device path /Network/Router.

    When devices are discovered they are placed into the /Discovered device path. They should then be moved to a more specific part of the tree. Servers are normally organized by OS, so windows machines might go to /Server/Windows. Other information can be added to a device, like its Business System or its Location, using the Edit tab on a device.

    When devices are discovered they are placed into the /Discovered device path. They should then be moved to a more specific part of the tree. Servers are normally organized by OS, so windows machines might go to /Server/Windows. Other information can be added to a device, like its Business System or its Location, using the Edit tab on a device.