Databases Reference
In-Depth Information
Enterprise Manager Database Plugin -- Repository Support
Enterprise Manager Grid Control Core Files
Enterprise Manager Minimal Integration
Enterprise Manager plugin Common Files
Enterprise Manager Repository Core Files
Oracle Enterprise Manager Console DB
This information can also be found in the Oracle Universal Installer's
graphical interface.
Console setup prerequisites
The easiest and least customizable procedure to setup Enterprise Manager Console is
by means of the DBCA at creation time. You just have to ask the DBCA to configure a
console for you. However, you should be aware that even the DBCA cannot take care
of basic setup prerequisites such as the host name. You must define the host name so
it doesn't contain underscores as this does not comply with DNS standard naming
conventions and you may face problems when trying to access the EM Console.
When configuring Enterprise Manager you must first properly configure the hosts
file (
/etc/hosts
on Unix like OSes and
%WINDIR%\system32\drivers\etc\hosts
on Windows platforms), the host name can either be simple or fully qualified, but
do not leave the default
localhost
address. This name will be read by EMCA and it
will be used to create the console administrative directories.
Oracle RDBMS should be installed on a host with fixed IP address, and
even though it is supported to install on DHCP based servers, you must
fix the IP address by means of a loopback adapter and have this loopback
address declared as the main IP address in the hosts file. Otherwise the
Console will stop working as soon as the IP address changes.
The reason why DHCP based server configuration is not encouraged is because
if an Oracle product binds to a DHCP address or host name, it can take a lot of
administration effort to convert the product to a newly assigned address or name.
Most of the times Enterprise Manager Console fails, it is because people mistakenly
leave the IP address to be dynamically assigned. If you are using dynamic IP
addresses then you must follow the above advice.
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