Installing Oracle Cluster Ready Services
The following sections describe the procedure for installing Oracle Cluster Ready
Services. This is the first phase of installing Oracle Database with Oracle Real
Application Clusters. These sections also explain how to create Oracle Real
Application Clusters databases, and describe the postinstallation tasks.
■
■
Section , "Installation Setup"
Section , "Installing Oracle Cluster Ready Services"
Installation Setup
In addition to the public IP address of the host computer, obtain two more IP addresses for each node that is going to be part of the installation. During the installation, enter the IP addresses into the DNS. One of the IP addresses must be a public IP address for the virtual IP address of the node. Virtual IP addresses are used for client-to-database connections. Therefore, the virtual IP address must be publicly accessible. The other address must be a private IP address for internode, or instance-to-instance Cache Fusion traffic. Using public interfaces for Cache Fusion can cause performance problems.
Installing Oracle Cluster Ready Services
This section describes the procedure for using Oracle Universal Installer to install
Oracle Cluster Ready Services. Note that the Oracle Cluster Ready Services home that you identify in this phase of the installation is only for Oracle Cluster Ready Services software. This home cannot be the same home as the home that you use in phase two to install Oracle Database software with Oracle Real Application Clusters.
1.
2.
3.
4.
5.
6.
7.
Start a new terminal session.
Set up display using the
$ SET DISPLAY
command.
Define the logical name
ORACLE_HOME
in OpenVMS syntax.
Create a temporary directory and define the
TMP
logical name to specify this directory in UNIX-style syntax.
Define logical
ORA_BATCH_QUEUE_
nodename
to point to an existing batch queue
(For more information about batch queue, refer to Appendix D ).
Create a file,
CLUSTER_NODES.DAT
, in the
SYS$LOGIN
directory with the list of nodes that are to comprise the Oracle Real Application Clusters cluster. This file displays each node on a separate line with the primary node listed first.
Run the following command:
$ SET NOVERIFY
8.
9.
Run the
$ SET PROCESS/PRIV=ALL
command.
Start the
RUNINSTALLER
script located in the
[CLUSTERWARE]
directory on the installation medium.
10.
If you are performing this installation in an environment where Oracle Universal
Installer inventory is already set up, then Oracle Universal Installer displays the
Specify File Locations screen. If the Specify File Locations screen is displayed, then
proceed to Step 11.
11.
The Specify File Locations screen contains predetermined information for the source of the installation files and the target destination information. Enter the
7
Oracle Cluster Ready Services home name and its location in the target destination, click Next, and Oracle Universal Installer displays the Language
Selection screen.
Note:
The Oracle Cluster Ready Services home that you identify in this step must be different from the Oracle home that you will use in phase two of the installation.
12.
In the Language Selection screen, select the languages that you want Oracle
Cluster Ready Services to use, click Next, and Oracle Universal Installer displays the Cluster Configuration screen.
13.
The Cluster Configuration screen contains predefined node information if Oracle
Universal Installer retrieved the nodes specified in
CLUSTER_NODES.DAT
.
Otherwise, Oracle Universal Installer displays the Cluster Configuration screen without predefined node information.
Enter a public node name and a private node name for each node. When you enter the public node name, use the primary host name of each node. This node name can be either the permanent or the virtual host name.
In addition, the cluster name that you use must be globally unique throughout the enterprise and the allowable character set for the cluster name is the same as that for host names, that is, underscores (_), hyphens (-), and single-byte alphanumeric characters (a to z, A to Z, and 0 to 9). Ensure that you also enter a private node name or private IP address for each node. This is an address that is only accessible by the other nodes in this cluster. Oracle uses the private IP addresses for Cache
Fusion processing. Click Next after you have entered the cluster configuration information, and Oracle Universal Installer performs validation checks such as node availability and remote Oracle home permissions verifications. These verifications may require some time to complete. When Oracle Universal Installer completes the verifications, it displays the Specify Network Interface Usage screen.
Note:
The IP addresses that you use for all of the nodes in the current installation process must be from the same subnet.
14.
On the Specify Network Interface Usage screen Oracle Universal Installer displays a list of clusterwide interfaces. Use the lists on this screen to classify each interface as
Public
,
Private
, or
Do Not Use
. The default setting for each interface is
Do
Not Use
. You must classify at least one interconnect as
Public
and one as
Private
.s
15.
When you click Next on the Specify Network Interface Usage screen, Oracle
Universal Installer will look for the
OCR.LOC file. Oracle Universal Installer will look for the file in the logindisk:[logindir.nodename] directory. If the
OCR.LOC file exists, and if the
OCR.LOC file has a valid entry for the Oracle
Cluster Registry (OCR) location, then the Voting Disk Location screen is displayed
and you should proceed to Step 16.
Otherwise, the Oracle Cluster Registry Location Information screen is displayed.
Enter a complete path for the shared file system file for the Oracle Cluster Registry, click Next, and the Voting Disk Information screen is displayed.
16.
On the Voting Disk Information screen, enter a complete path and file name for the file in which you want to store the voting disk, and then click Next.
8 Oracle Database Installation Guide
Note:
The storage size for the OCR should be at least 100 MB and the storage size for the voting disk should be at least 20 MB. In addition,
Oracle recommends that you use a RAID array for storing the OCR and the voting disk to ensure the continuous availability of the partitions.
17.
Oracle Universal Installer displays the list of components that will be installed on the Summary screen. Review the list of components and click Install.
18.
Oracle Universal Installer runs the Oracle Private Interconnect Configuration
Assistant. This assistant runs without your intervention.
Note:
If one or more of the configuration assistants fails, then you can manually rerun the script created by Oracle Universal Installer to determine the cause of the failure. You can find this script in the
ORA_
ROOT:[CFGTOOLLOGS] directory. You may need to edit the script to replace placeholders for passwords, to remove steps that completed successfully, and so on.
19.
When Oracle Universal Installer displays the End of Installation screen, click Exit to exit Oracle Universal Installer.
20.
Run the
ORAUSER.COM
command procedure.
21.
Verify the Oracle Cluster Ready Services installation by running the following
OLSNODES command:
$ OLSNODES
The output from this command should be a listing of the nodes on which Oracle
Cluster Ready Services was installed as shown in the following example:
$ OLSNODES -N racserver1 1 racserver1 2
At this point, you have completed phase one, the installation of Oracle Cluster Ready
Services, and are ready to install Oracle Database 10g with Oracle Real Application
Clusters as described in
Section , "Installation Tasks for Oracle Real Application
Clusters"
.
Oracle Cluster Ready Services Background Processes
The following processes must be running in the environment after the Oracle Cluster
Ready Services installation for Oracle Cluster Ready Services to function:
■ evmd
Event manager daemon that starts the
racgevt process to manage callouts.
■
■ ocssd
Manages cluster node membership and runs in the Oracle Database account.
Failure of this process results in cluster restart.
crsd
9
