Oracle Clusterware. Installation and configuration презентация

Oracle Clusterware Installation and Configuration

Objectives After completing this lesson, you should be able to: Describe the installation of Oracle RAC 11g Perform RAC preinstallation tasks Perform cluster setup tasks Install Oracle Clusterware

Oracle RAC 11g Installation Oracle RAC 11g incorporates a two-phase installation process: Phase one installs Oracle Clusterware. Phase two installs the Oracle Database 11g software with RAC.

Oracle RAC 11g Installation: Outline Complete preinstallation tasks: Hardware requirements Software requirements Environment configuration, kernel parameters, and so on Perform Oracle Clusterware installation. Perform ASM installation. Perform Oracle Database 11g software installation. Install EM agent on cluster nodes if using Grid Control. Perform cluster database creation. Complete postinstallation tasks.

Windows and UNIX Installation Differences Startup and shutdown services Environment variables DBA account for database administrators Account for running OUI

Preinstallation Tasks Check system requirements. Check software requirements. Check kernel parameters. Create groups and users. Perform cluster setup.

Hardware Requirements At least 1 GB of physical memory is needed. A minimum of 1 GB of swap space is required. The /tmp directory should be at least 400 MB. The Oracle Database 11g software requires up to 4 GB of disk space.

Network Requirements Each node must have at least two network adapters. Each public network adapter must support TCP/IP. The interconnect adapter must support User Datagram Protocol (UDP). The host name and IP address associated with the public interface must be registered in the domain name service (DNS) or the /etc/hosts file.

Virtual IP Addresses and RAC

RAC Network Software Requirements Supported interconnect software protocols are required: TCP/IP UDP Reliable Data Gram Token Ring is not supported on AIX platforms.

Package Requirements Package versions are checked by the cluvfy utility. For example, required packages and versions for Red Hat 4.0 and Oracle Enterprise Linux 4 include: glibc-2.3.4-2.25 glibc-common-2.3.4.2-25 glibc-devel-2.3.4.2-25 gcc-3.4.6-3 gcc-c++-3.4.6-3 libaio-0.3.105-2 libaio-devel-0.3.105-2 libstdc++-3.4.6-3.1 make-3.80-6 sysstat-5.0.5-11

Required UNIX Groups and Users Create an oracle user, a dba, and an oinstall group on each node: Verify the existence of the nobody nonprivileged user:

oracle User Environment Set umask to 022. Set the DISPLAY environment variable. Set the ORACLE_BASE environment variable. Set the TMP and TMPDIR variables, if needed.

User Shell Limits Add the following lines to the /etc/security/limits.conf file: Add the following line to the /etc/pam.d/login file:

Configuring for Remote Installation To configure Secure Shell: Create the public and private keys on all nodes: Concatenate id_dsa.pub from all nodes into the authorized_keys file on the first node: Copy the authorized_keys file to the other nodes:

Required Directories for the Oracle Database Software You must identify five directories for the Oracle database software: Oracle base directory Oracle inventory directory Oracle Clusterware home directory Oracle home directory for the database Oracle home directory for ASM

Linux Operating System Parameters

Cluster Setup Tasks View the Certifications by Product section at http://metalink.oracle.com/. Verify your high-speed interconnects. Determine the shared storage (disk) option for your system: OCFS or other shared file system solution Raw devices ASM ASM cannot be used for the OCR and Voting Disk files! Install the necessary operating system patches.

Verifying Cluster Setup with cluvfy Install the cvuqdisk rpm required for cluvfy: Run the cluvfy utility as oracle as shown below:

Installing Oracle Clusterware

Specifying the Inventory Directory

Specify Home Details

Product-Specific Prerequisite Checks

Cluster Configuration

Private Interconnect Enforcement

Oracle Cluster Registry File

Voting Disk File

Summary and Install

Run Configuration Scripts on All Nodes

End of Installation

Verifying the Oracle Clusterware Installation Check for Oracle Clusterware processes with the ps command. Check the Oracle Clusterware startup entries in the /etc/inittab file.

Summary In this lesson, you should have learned how to: Describe the installation of Oracle RAC 11g Perform RAC preinstallation tasks Perform cluster setup tasks Install Oracle Clusterware

Practice 1: Overview This practice covers the following topics: Performing initial cluster configuration Installing Oracle Clusterware