Administer > NNMi Discovery > Configure Discovery > Tips for Configuring Seeds

Tips for Configuring Seeds

When configuring seeds, note the following best practices:

  • If you already have a file that lists the nodes to be discovered, format this information as a seed file and use the nnmloadseeds.ovpl command to import the node list into NNMi.
  • In the seed file, specify IP addresses as a way of influencing the IP address that NNMi chooses as the management address. (If you use hostnames, DNS provides the IP address for each node.)

  • Good formats for the entries in the seed file are shown here:

    IP_address1 # node name
    IP_address2, <tenant_UUID_or_tenant_name> # node name

    These formats are easy for both NNMi and human readers.

  • For maintenance purposes, it is better to use only one seed file. Add nodes as needed and then rerun the nnmloadseeds.ovpl command. NNMi discovers the new nodes but does not re-evaluate the existing nodes.

Note If the seed file cannot be loaded, try making the file readable by nmsproc (644 permissions).

  • Removing a node from the seed file does not remove it from the NNMi topology. Delete the node directly in the NNMi console.
  • Deleting a node from a map or inventory view does not delete the seed.
  • If you want NNMi to rediscover a node, delete that node from a map or inventory view and from the Seeds form in the Discovery area of the Configuration workspace in the NNMi console, and the re-enter the node in the NNMi console, or run the nnmloadseeds.ovpl command.

Rule-based discovery only

  • Completely configure a discovery rule before you specify a seed for that rule. That is, click Save and Close on the Discovery Configuration form. (The Discovery Seed form is a separate form that is not part of the Discovery Configuration form in the database model. As a result, when you save the information on the Discovery Seed form, NNMi updates the seed configuration immediately.)