Enterprise Manager Configuration Assistant - Oracle 10g/11g Data and Database Management Utilities - page 348

EMCA 10g Release 1
The EMCA command parameters have changed from Ora10gR1 to Ora10gR2; if you
still have Release 1 installed you must be aware that the EMCA parameters used in
that release were completely different to the parameters in 10gR2. I would go so far as
to say that one of the very few things these releases have in common is the tool name.

EMCA 10gR1 syntax
emca [options] [list of parameters][options] = -[a|b|c|e <node>|
f <node>|h|m|n <ndoe>|r|s|x <db>|RMI_PORT <port>|JMS_PORT <port>|
AGENT_PORT <port>|DBCONSOLE_HTTP <port>]
[list of parameters] = [HOST | SID | PORT | ORALCE_HOME | LISTENER |
HOST_USER | HOST_USER_PWD | BACKUP_HOUR | BACKUP_MINUTE |
ARCHIVE_LOG | EMAIL_ADDRESS | MAIL_SERVER | MAIL_SERVER_NAME |
ASM_OH | ASM_SID | ASM_PORT | ASM_USER_ROLE | AMS_USER_NAME |
ASM_USER_PWD | EM_HOME | DBSNMP_PWD | SYSMAN_PWD | SYS_PWD |
CLUSTER_NAME | DB_NAME | SERVICE_NAME | ]

EMCA 10gR1 options

Parameter Description
-a This option configures for an ASM database
-b This configures for automatic backup
-c Configures a cluster database
-e <node> Removes a node from the cluster
-f <file> Specifies the file name that contains parameter values
-h Displays help
-m Configures EM for a central agent
-n <node> Adds a new node to the cluster
-r This option skips the creation of the repository schema
-s This option enables silent mode so the user is not prompted for
information
-x <db> This option removes a SID or DB configuration
-RMI_PORT <port> This stands for the Remote Method Invocation ( RMI ) port
-JMS_PORT <port> This is the Java Messaging Service ( JMS ) port to be used
-AGENT_PORT <port> This is the standalone management Agent port for DB Control.
If this port is not specified the EMCA will automatically assign one.

-DBCONSOLE_HTTP_
PORT <port>

This specifies the EM http port, if not specified the EMCA will
automatically assign one. Make sure this port is not already taken.