HP Storage Essentials Enterprise Edition Software - Manual (Page 746)

Troubleshooting 708
Element Logs Authentication Errors During Discovery
During discovery, you may see SNMP authentication errors on the element you are trying to
discover. The management server is probing the element with an SNMP request. If the element does
not know the management server, it logs authentication errors.
EMC Device Masking Database Does Not Appear in Topology (AIX Only)
An EMC device masking database attached to an AIX host does not appear in the Topology tree
under the Application Path - Unmounted node on the Topology tab in System Manager.
If the EMC device masking database is attached to a host running Microsoft Windows or Sun
Solaris, the masking database appears under the Application Path - Unmounted node.
Management Server Does Not Discover Another Management Server's
Database
In some situations, the management server may not discover another management server’s
database. Make sure that the Oracle monitoring software (CreateOracleAct.bat for Microsoft
Windows) is installed on the management server to be discovered and that the Oracle instance is
added to the discovery list.
Microsoft Exchange Drive Shown as a Local Drive
Microsoft Exchange Servers have a drive M. The software displays this drive as a local fixed disk,
instead of a Microsoft Exchange Server special drive.
Unable to Discover Microsoft Exchange Servers
If DNS records for your Microsoft Exchange servers are outdated or missing, the discovery of
Microsoft Exchange may fail because Microsoft Exchange is dependant on Active Directory, which
is dependant on DNS. Since Active Directory is dependant on DNS, Active Directory replication
and Active Directory lookups may fail or contain errors if DNS records are not accurate.
Nonexistent Oracle Instance Is Displayed
The software uses the Oracle Transparent Name Substrate (TNS) listener port to detect Oracle
instances on a server. Sometimes an Oracle instance is removed from the server, but not from the
TNS listener port. This results in the software detecting the nonexistent Oracle instance and
displaying it in the topology. See Oracle documentation for information on how to remove the
deleted Oracle instance from the TNS listener port.
Requirements for Discovering Oracle
To discover Oracle:
• The management software for Oracle must be installed. For information about installing the
management software for Oracle, see the Installation Guide.
• By default, the software sets the TNS listener port to 1521. If you use another port, you can
change the port number on the Discovery Targets tab.
• Oracle discovery relies on the TNS networking substrate on which Oracle is built (TNS is
Oracle's proprietary protocol). The software does not use the TNS listener password. If you have