Installation Manual

Troubleshooting402
Duplicate entries for the same element on the Discovery Data Collection
page
If an element is discovered through two different protocols, it may be listed twice on the Discovery
Data Collection page.
If you want to change the protocol used to discover an element that has already been discovered,
delete the element before attempting to rediscover it. See ”Discovery Data Collection” on
page 153 for more information.For some elements, duplicate entries may result if a second
protocol is available. For example, you could choose to discover an element through a supported
API, but if the element supports SMI-S, and the SMI-S provider is also available, the element could
be discovered again. In this example, you could fix the issue by disabling the SMI-S provider.
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If DNS records for your Microsoft Exchange servers are outdated or missing, the discovery of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