This section provides two active/standby configuration examples, shown in Figure 1and Figure 2. In these configurations, Server 1 is considered active because it has exclusive access to the database. Server 2 does other processing. If Server 1 fails, Server 2 gains access to the database and LifeKeeper re-establishes the database operations.

Figure 1. Active/Standby Configuration, Example 1

Configuration Notes:

  1. Each server has its own $ORACLE_HOME directory on a non-shared disk. Each server has the same version of the Oracle application.

  2. The $ORACLE_HOME path is the same on both servers.

  3. The database, databaseA, is on a shared disk.
  4. Creating a resource hierarchy on Server 1:

    Server: Server1
    ORACLE_SID for Database: databaseA
    Username for Database: system
    Password for Username: **********
    ORACLE_SID for Database: /home1/oracle
    Database Tag: databaseA-on-server1

    Extending the resource hierarchy to Server 2:

    Template Server: Server1
    Tag to Extend: databaseA-on-server1
    Target Server: Server2
    Target Priority: 10
    Database Tag: databaseA-on-server1

    Figure 2. Active/Standby Configuration, Example 2

    Configuration Notes:


    1. Both servers use the $ORACLE_HOME directory on a shared disk.

    2. The $ORACLE_HOME path is the same on both servers.

    3. The database, databaseA, is on a shared disk.

    4. Server 2 can not access files and directories on the shared disk while Server 1 is active.

    5. $ORACLE HOME can be on the same shared disk as the database or on separate disks.

    Creating a resource hierarchy on Server 1:

    Server: Server1
    ORACLE_SID for Database: databaseA
    Username for Database: system
    Password for Username: **********
    ORACLE_HOME for Database: /shr1/oracle
    Database Tag: databaseA-on-server1

    Extending the resource hierarchy to Server 2:

    Template Server: Server1
    Tag to Extend: databaseA-on-server1
    Target Server: Server2
    Target Priority: 10
    Database Tag: databaseA-on-server1

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