HP Operations Manager for Windows

Automatic Update


Automatic update automatically identifies nodes that come online, as well as nodes that are not monitored by NNM anymore on regular intervals.

An HP NNM Adapter component, the NgNnmUpdater, controls the update time interval. The default update interval is one day, but you can change this using the appropriate registry key.

Note NOTE:
If you prefer, you can start an update manually using the Updater.exe tool described in the "HP NNM Adapter Utilities" help topic.

New Nodes Discovered by HP NNM

If the automatic update finds nodes in HPOM for Windows that are also known to NNM, but they are not members of the NNM Managed Nodes group, the update process adds those nodes to the NNM Managed Nodes group. Because HP NNM Web Tools are assigned to this node group, the nodes in this group inherit the tools. HP NNM Web Tools are also assigned to services hosted on those nodes.

Disconnected Nodes

Nodes can become disconnected and are no longer present in NNM's node discovery list. This usually means that the disconnected node has an SNMP or other network-related problem. During the automatic update, these nodes are reported as Disconnected with the following message:

Automatic Update from HP NNM: Node is disconnected. Cannot be discovered by HP NNM. Node may have SNMP or other network related problem.

Disconnected nodes are removed from the NNM Managed Nodes group and HP NNM Web Tools are unassigned from services hosted on them.

The way in which disconnected nodes are handled depends on a organization's processes and preferences. With this in mind, the HP NNM Adapter does not take any automatic action on disconnected nodes. With the right user role permissions, an operator can manually disconnect a node using the operator-selectable action Remove node from HP Operations Manager for Windows. If you do not want to manage this node anymore, you can easily remove it. If you want to keep it, you can disregard the disconnection message without initiating any other actions.

Note NOTE:
Internally, node removal in HP Operations Manager is a complex process. The HP NNM Adapter uses the same process as HP Operations Manager and displays this message:

Deleting this node will remove it, and the services hosted on it, from the management server inventory. Policies and packages on this managed node will not be automatically removed, but inventory about the node will be removed from the management server database. You should remove policies and packages before removing the node.

Are you sure you want to remove the node <node>?

You should answer yes only after all policies and packages are removed from the node to be deleted.

Changing the update interval for NgNnmUpdater

You can configure the update interval using the NgNnmUpdater Update Interval registry key by completing these steps:
  1. Run the registry editor on the HPOM for Windows computer with this command:

    Start Run regedit OK

  2. In the registry editor, go to this location:

    HKEY_LOCAL_MACHINE\SOFTWARE\Hewlett-Packard\OpenView\NNMAdapter\NgNnmUpdater\Repl\UpdateInterval

  3. Double-click the property labeled UpdateInterval to open the Edit DWORD Value dialog box.
  4. Type a new update interval in seconds.
  5. Click OK to confirm the change and close the dialog box. The new update interval takes effect on the next regular update or as triggered by a user.

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