HP Storage Essentials V5.1 User Guide First Edition (T4283-96026, August 2006)

Discovering NAS Devices, Tape Libraries, Switches and Storage Systems86
• ”Modifying the Properties of a Discovered Address” on page 86
• ”Deleting Elements from the Product” on page 87
Building the Topology View
After you discover elements, the management server requires you to build a topology view, which
is a graphical representation of port-level connectivity information.
If a switch has more than one connection to an element, the number of connections is displayed
above the line linking the switch and the element. For example, assume the number two is shown
between a switch and a storage system. This means the elements have two connections to each
other. To view the port details for the connection, right-click the element and select Show Port
Details from the drop-down menu.
If the topology changes, you can update how the element is viewed in the topology by selecting the
element and clicking the Get Topology for Selected button in the Get Topology for discovered
elements page (from the HP SIM home page, click Tools > Storage Essentials > Home. The
Storage Essentials home page opens in a separate web browser window. Click Discovery >
Topology in the upper-right pane of the Storage Essentials home page). The management server
obtains just enough information about where the element is connected in the topology, for example
a switch connected to a host.
The management server marks an element with a question mark in the topology if the management
server detects an element but it cannot obtain additional information about it. To learn more about
fixing detected and/or disconnected elements, see the topic, ”Troubleshooting Topology Issues” on
page 665.
IMPORTANT: The user interface in Storage Essentials may load slowly while the topology is being
recalculated.
To obtain enough information to display the topology in System Manager:
1. Click the Discovery menu in the upper-right corner of the Store Essentials home page.
2. Click Topology in the upper-right corner.
The discovered elements are selected.
3. Select the discovery group from which you want to obtain the topology. If you are obtaining the
topology for the first time, make sure All Discovery Groups is selected.
You can use discovery groups to break up getting the topology or getting details. For example,
instead of getting the topology for all of the discovered elements, you could specify that the
management server gets the topology for only the elements in Discovery Group 1, thus, saving
you time. You add an element to a discovery group by modifying the properties used to
discover the element. See ”Modifying the Properties of a Discovered Address” on page 86.
4. Click the Get Topology button.
The management server obtains the topology for selected elements.
The management server displays the Log Message page. After the management server builds
the topology, a link appears to take you to System Manager so you can verify the topology
view. You can also access System Manager by clicking System Manager in the left pane.