What is 11g RAC?

Oracle Real Application Clusters 11g. INTRODUCTION. Oracle Real Application Clusters (RAC) allows Oracle Database to run any packaged or custom application, unchanged across a set of clustered servers. This provides the highest levels of availability and the most flexible scalability.

How do I get to the Enterprise Manager in Oracle 11g?

After creating the SSH tunnel, direct your browser to the URL https://localhost:1158/em . When prompted for a user name and password, enter the name of a user with the DBA privilege (such as SYS or SYSTEM ) and the password. If you want to connect with SYSDBA privileges, select as SYSDBA.

How do you stop Dbconsole?

Do one of the following:

1. To start the dbconsole process, run the following command: ./emctl start dbconsole.
2. To stop the dbconsole process, run the following command: ./emctl stop dbconsole.
3. To view the status of the dbconsole process, run the following command: ./emctl status dbconsole.

How do I open EM console?

To access the Oracle Enterprise Manager Console from a client browser, the dbconsole process needs to be running on the server. This process is automatically started after installation….Starting dbconsole in Windows

1. Click Start->Control Panel->Administrative Tools->Services.
2. Oracle services begin with Oracle.

What is Oracle RAC used for?

Oracle Real Application Clusters (RAC) allow customers to run a single Oracle Database across multiple servers in order to maximize availability and enable horizontal scalability, while accessing shared storage.

What is Oracle RAC server?

Oracle Rack Cabinets Rack Cabinets. Oracle Rack offers your data center ease of use, flexibility, and optimal application of your limited space to bring better ROI and utilization to your IT infrastructure.

How do I start Enterprise Manager?

Starting and Stopping the Oracle Enterprise Manager Console

1. Navigate into your ORACLE_HOME/bin directory.
2. Run the following statement: ./emctl start dbconsole.

How do I launch Enterprise Manager database Express?

A user can log into EM Express by using a browser and opening the URL to https://:/em. A login page will be displayed, and the user can log in with any valid DB credential.

What is Dbconsole?

To access the Oracle Enterprise Manager Console from a client browser, the dbconsole process needs to be running on the server. The dbconsole process is automatically started after installation. However, in the event of a system restart, you can start it manually at the command line or start it as a service in Windows.

How do I know if OEM agent is running?

To check the status of the Management Agent on Windows systems:

1. Change directory to the following location in the AGENT_HOME directory: AGENT_HOME\bin.
2. Enter the following emctl command to check status of the Management Agent: $PROMPT> .\emctl status agent.

What is EM console?

The Oracle Enterprise Manager Console is a graphical user interface that provides menus, toolbars, launch palettes, and the framework to allow access to Oracle tools, plus utilities available through other vendors.

Where is Oracle Enterprise Manager console?

By default, it is installed with the Management Server under the Oracle_Home/oem_webstage / directory. In addition, the Enterprise Manager web site automatically installs a preconfigured Oracle HTTP server to act as its web server.

How does RAC database work?

Oracle RAC allows multiple computers to run Oracle RDBMS software simultaneously while accessing a single database, thus providing clustering. In a non-RAC Oracle database, a single instance accesses a single database. The database consists of a collection of data files, control files, and redo logs located on disk.

What is Oracle RAC architecture?

The Oracle RAC option with Oracle Database enables you to cluster Oracle databases. Oracle RAC uses Oracle Clusterware for the infrastructure to bind multiple servers so they operate as a single system. Oracle Clusterware is a portable cluster management solution that is integrated with Oracle Database.

How many nodes can Oracle RAC?

100 nodes
Oracle RAC 11g supports up to 100 nodes.

Is Oracle RAC active active?

Oracle RAC uses an active-active architecture that enables multiple database instances, each running on different nodes, to simultaneously read and write to the same database.

What is Dbconsole in Oracle?

How do I launch Enterprise Manager Database Express?

What can you use Oracle Enterprise Manager database Express to do?

Using EM Express, you can perform administrative tasks such as managing user security and managing database memory and storage. You can also view performance and information about your database.

How do I connect to Oracle EM Express?

To connect to EM Express, go to https://localhost:5500/em from the browser on the system. Port 5500 is the default port assigned during database creation. During install, we automatically choose next port (for example, 5501 ) if 5500 is already used. Then you must provide that port.