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3.2 Discovering Devices

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Created on: Oct 11, 2011 4:59 PM by Zenoss API - Last Modified:  Oct 11, 2011 5:17 PM by Zenoss API

 2. Discovering Devices

You can provide network or IP address range information so that the system can discover your devices.

Follow these steps to discover devices:

  1. From the Navigation menu, select Infrastructure.

    The Devices page appears.

  2. Select Add Multiple Devices from (Add Devices).

    The Add Devices panel appears.

  3. Select the Autodiscover devices option.

     

    Figure 3.2. Add Multiple Devices (Discover)

    Add Multiple Devices (Discover)

  4. For each network or IP range in which you want  Resource Manager to discover devices, enter an address or range. For example, you might enter a network address in CIDR notation:

    10.175.211.0/24

    or a range of IP addresses:

    10.175.211.1-50

  5. If you want to enter multiple addresses or ranges, click +. For each network, you must enter a netmask or IP range.

  6. For each network or IP range, specify the Windows, SSH, or SNMP credentials you want  Resource Manager to use on the devices it discovers. You can enter only one of each.  Resource Manager will attempt to use the same credentials on each device it discovers within the networks or IP ranges specified, but will not try to automatically classify the devices.

  7. Click Discover.

    The discovery process iterates through every IP address in the networks and IP ranges you specify, adding each device that responds to a ping request. Further, the process adds information to any device that responds to an SNMP, WMI, or SSH request.

 Resource Manager places discovered routers in the device path /Network/Router. Devices are placed in the /Discovered device class.

 2.1. Classifying Discovered Devices

Once discovery is complete, you must move discovered devices (placed, by default, in the /Discovered class) to an appropriate device class in the hierarchy. Moving devices to their correct hierarchy location makes it possible for monitoring to begin.

Servers are organized by operating system. If the system discovers Windows devices, for example, you might choose to relocate them to /Server/Windows. Similarly, you might choose to classify discovered Linux devices in /Server/Linux (if you want to monitor and model using SNMP), or /Server/SSH/Linux (if you want to monitor and model using SSH).

To classify discovered devices:

  1. Select one or more discovered devices (highlight one or more rows) in the device list.

  2. Drag the selected devices to the new device class in the tree view.

     

    Figure 3.3. Classifying Discovered Devices

    Classifying Discovered Devices

    The Move Devices dialog appears.

  3. Click OK.

    The list of devices refreshes, and the devices now appear in the newly selected class.

 2.2. Updating Device Authentication Details

For each device added to the database and set to its proper device class, the system may require additional or different authentication information before it can gather device information and monitor the device.

For example, for a device in the /Server/Windows class, you must supply your Windows user name and password before the system can monitor the device. To do this:

  1. Click a device name in the devices list.

    The Device summary page appears.

  2. Select Configuration Properties from the left panel.

  3. Double-click the zWinUser configuration property to display the Edit Config Property dialog.

  4. Enter your Windows user name in the Value field, and then click Submit.

  5. Double-click the zWinPassword configuration property to display the Edit Config Property dialog.

  6. Enter your Windows password in the Value field, and then click Submit.

Similarly, for a device in the /Server/SSH/GenericLinux class, you must supply your SSH user name and password. Set these values in the device's zCommandUsername and zCommandPassword configuration properties.

Tip

After making changes, you should remodel the device to ensure the authentication changes are valid.

 2.3. Adding Information to a Device Record

You may want to add details about a discovered device.

To add information:

  1. Click a device name in the devices list.

    The Device overview page appears.

  2. You can select values to change, or click the "edit" link adjacent to a label to edit that value. Enter or change information in one or more areas, and then click Save to save your changes.

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