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Sun Cluster 3.0 Data Services Installation and Configuration Guide

How to Configure Sun Cluster HA for Oracle Extension Properties

Typically, you configure extension properties by using the Cluster Module of Sun Management Center or the command line scrgadm -x parameter=value at the time you create the Oracle server and listener resources. You can also configure them later by using the procedures described in Chapter 9, Administering Data Service Resources.

Some extension properties can be updated dynamically and others only when the resource is created or when it is disabled. The Tunable column in the following two tables indicates when the property can be updated.

The required extension property for creating an Oracle listener resource is ORACLE_HOME. Table 2-3 describes the extension properties that you can set for the Oracle listener resource.

Table 2-3 Sun Cluster HA for Oracle Listener Extension Properties

Name/Data Type 

Default 

Range 

Tunable 

Description 

LISTENER_NAME (string)

LISTENER

None 

When disabled 

The name of the Oracle listener 

ORACLE_HOME (string)

None 

Minimum = 1 

When disabled 

The path to the Oracle home directory 

User_env (string)

"" 

None 

Any time 

A file that contains environment variables, which is to be set before listener startup and shutdown 

Table 2-4 describes the extension properties that you can set for the Oracle server.The only extension properties that you are required to set for the Oracle server are ORACLE_HOME, ORACLE_SID, Alert_log_file, and Connect_string.

Table 2-4 Sun Cluster HA for Oracle Server Extension Properties

Name/Data Type 

Default 

Range 

Tunable 

Description 

Alert_log_file (string)

None 

Minimum = 1 

Any time 

Oracle alert log file 

Connect_cycle (integer)

5 

0 - 99,999 

Any time 

The number of fault monitor probe cycles before disconnecting from the database 

Connect_string (string)

None 

Minimum = 1 

Any time 

The Oracle user and password that are used by the fault monitor to connect to the database 

ORACLE_HOME (string)

None 

Minimum = 1 

When disabled 

The path to the Oracle home directory 

ORACLE_SID (string)

None 

Minimum = 1 

When disabled 

The Oracle system identifier 

Parameter_file (string)

"" 

Minimum = 0 

Any time 

The Oracle parameter file. If it is not specified, this property defaults to Oracle's default. 

Probe_timeout (integer)

60 

0 - 99,999 

Any time 

The time-out value (in seconds) used by the fault monitor to probe an Oracle server instance 

User_env (string)

"" 

None 

Any time 

A file that contains environment variables to be set before listener startup and shutdown 

Wait_for_online (Boolean)

True

None 

Any time 

Wait in the START method until the database is online