HP Storage Essentials NAS Manager Software - Manual (Page 86)

Discovering NAS Devices, Tape Libraries, Switches and Storage Systems 54
12. To start discovering elements on the network, click the Start Discovery button on the IP
Addresses
tab.
Discovery is complete when the software displays the DISCOVERY COMPLETED message in the
Log Messages field.
IMPORTANT: To obtain more information about the switch, you need to map the topology
and obtain element details. See the topics ” Building the Topology View ” on page 85 and
” Get Details or Discovery Data Collection ” on page 90.
(Discovery from HP SE Only) Make Sure There Are No Port Conflicts for
Receiving SNMP Traps
When the management server is configured to contact a switch by SNMP, the management server
receives events from the switch in the form of SNMP traps. By default, the management server uses
port 162 to receive SNMP traps. If another software package is using that port, the management
server is unable to receive the traps. To change the port the management server uses:
1. Select Configuration > Product Health. Then, click Advanced in the Disk Space tree.
2. Click Show Default Properties at the bottom of the page.
3. Copy the following command:
cimom.snmpTrapListenerPort
4. Return to the Advanced page.
5. Paste the copied text into the Custom Properties field. How you paste the text depends on
your Web browser. If you are using Microsoft Explorer or Netscape Navigator, right-click the
field and select Paste.
6. Set the cimom.snmpTrapListenerPort to another port, as shown in the following
example:
cimom.snmpTrapListenerPort=1234
where 1234 is the new port
7. When you are done making your changes, click Save.
8. Restart the service for the management server for your changes to take effect.
While AppStorManager is restarting, users are not able to access the management server. The
AppStorManager service must be running for the management server to monitor elements.
Step 3 - Set Up the Proxy to Send Traps to the Correct Port
IMPORTANT: The management server uses the Windows SNMP trap service when Discovery from
HP SIM is used.
When you are using the SNMP setting to discover a proxy, you must configure the SNMP agent on
the proxy manager to send traps to the management server using the port you selected. This
configuration sends traps from all switches managed by that proxy. Refer to your documentation
for your proxy for more information.