Step-By-step Installation Guide RAC 12cR1 on Linux | Oracle Database | Domain Name System

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RAC 12cR1 on Linux
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  1 STEP BY STEP INSTALLATION OF ORACLE RAC 12cR1 (12.1.0.2) ON LINUX X86-64 Oracle Global Customer Support - RAC / Scalability Copyright © 1993, 2014, Oracle and/or its affiliates. All rights reserved    2 Contents 1. Introduction ....................................................................................................................................... 31.1 Oracle Grid Infrastructure Installation Server Hardware Checklist ........................................... 31.1.1 Server Hardware Checklist for Oracle Grid Infrastructure ................................................. 31.1.2 Environment Configuration for Oracle Grid Infrastructure and Oracle RAC ..................... 31.1.3 Network Configuration Tasks for Oracle Grid Infrastructure and Oracle RAC ................... 41.1.4 Oracle Grid Infrastructure Storage Configuration Checks ................................................. 51. 2 Configuring Servers for Oracle Grid Infrastructure and Oracle RAC .......................................... 61.2.1 Checking Server Hardware and Memory Configuration .................................................... 61.2.2 Server Storage Minimum Requirements ........................................................................... 71.2.3 64-bit System Memory Requirements ............................................................................... 71.3 Operating System Requirements for x86-64 Linux Platforms ................................................... 71.3.1 Supported Oracle Linux 7 and Red Hat Enterprise Linux 7 Distributions for x86-64 ......... 81.3.2 Supported Oracle Linux 6 and Red Hat Enterprise Linux 6 Distributions for x86-64 ......... 91.3.3 Supported Oracle Linux 5 and Red Hat Enterprise Linux 5 Distributions for x86-64 ....... 102. Prepare the cluster nodes for Oracle RAC ....................................................................................... 122.1. User Accounts ............................................................................................................................... 122.2 Networking ............................................................................................................................... 122.3. Synchronizing the Time on ALL Nodes .......................................................................................... 142.4 Installing the Oracle Preinstallation RPM with ULN support ................................................... 142.5 Configuring Kernel Parameters ................................................................................................ 152.6 Set shell limits for the oracle user ............................................................................................ 162.7 Create the Oracle Inventory Directory ..................................................................................... 172.7. Creating the Oracle Grid Infrastructure Home Directory ............................................................. 172.8. Creating the Oracle Base Directory ............................................................................................... 172.9. Creating the Oracle RDBMS Home Directory ................................................................................ 172.10. Stage the Oracle Software .......................................................................................................... 173. Prepare the shared storage for Oracle RAC ......................................................................................... 183.1. Shared Storage .............................................................................................................................. 183.1.1. Partition the Shared Disks ...................................................................................................... 183.1.2. Installing and Configuring ASMLib ......................................................................................... 193.1.3. Using ASMLib to Mark the Shared Disks as Candidate Disks ................................................. 203.2 Setting Disk I/O Scheduler on Linux ......................................................................................... 214. Oracle Grid Infrastructure Install ..................................................................................................... 225. RDBMS Software Install ................................................................................................................... 456. ASMCA to create Diskgroups ........................................................................................................... 577. Run DBCA to create the database .................................................................................................... 608. Applying Latest PSUs to GRID & RDBMS Homes .............................................................................. 74   3 1. Introduction 1.1 Oracle Grid Infrastructure Installation Server Hardware Checklist 1.1.1 Server Hardware Checklist for Oracle Grid Infrastructure Server hardware:  server make, model, core architecture, and host bus adaptors (HBA) are supported to run with Oracle RAC. Network Switches: ã   Public network switch, at least 1 GbE, connected to a public gateway. ã   Private network switch, at least 1 GbE, with 10 GbE recommended, dedicated for use only with other cluster member nodes. The interface must support the user datagram protocol (UDP) using high-speed network adapters and switches that support TCP/IP. Alternatively, use InfiniBand for the interconnect. Runlevel : Servers should be either in runlevel 3 or runlevel 5. Random Access Memory (RAM) : At least 4 GB of RAM for Oracle Grid Infrastructure for a Cluster installations, including installations where you plan to install Oracle RAC. Temporary disk space allocation : At least 1 GB allocated to /tmp . Storage hardware : Either Storage Area Network (SAN) or Network-Attached Storage (NAS). Local Storage Space for Oracle Software   ã   At least 8 GB of space for the Oracle Grid Infrastructure for a cluster home (Grid home). Oracle recommends that you allocate 100 GB to allow additional space for patches. ã   At least 12 GB of space for the Oracle base of the Oracle Grid Infrastructure installation owner (Grid user). The Oracle base includes Oracle Clusterware and Oracle ASM log files. ã   For Linux x86-64 platforms, if you intend to install Oracle Database, then allocate 6.4 GB of disk space for the Oracle home (the location for the Oracle Database software binaries). 1.1.2 Environment Configuration for Oracle Grid Infrastructure and Oracle RAC Create Groups and Users .   A user created to own only Oracle Grid Infrastructure software installations is called the grid  user. A user created to own either all Oracle installations, or only Oracle database installations, is called the oracle  user. Create mount point paths for the software binaries . Oracle recommends that you follow the guidelines for an Optimal Flexible Architecture configuration. Review Oracle Inventory (oraInventory) and OINSTALL Group Requirements.  The Oracle Inventory directory is the central inventory of Oracle software installed on your system. Users who have the Oracle Inventory group as their primary group are granted the OINSTALL privilege to write to the central inventory. Ensure that the Grid home (the Oracle home path you select for Oracle Grid Infrastructure) uses only ASCII characters  4 Unset Oracle software environment variables . If you have set ORA_CRS_HOME  as an environment variable, then unset it before starting an installation or upgrade. Do not use ORA_CRS_HOME  as a user environment variable. If you have had an existing installation on your system, and you are using the same user account to install this installation, then unset the following environment variables: ORA_CRS_HOME ; ORACLE_HOME ; ORA_NLS10 ; TNS_ADMIN . 1.1.3 Network Configuration Tasks for Oracle Grid Infrastructure and Oracle RAC Public Network Hardware : ã   Public network switch (redundant switches recommended) connected to a public gateway and to the public interface ports for each cluster member node. ã   Ethernet interface card (redundant network cards recommended, bonded as one Ethernet port name). ã   The switches and network interfaces must be at least 1 GbE. ã   The network protocol is TCP/IP. Private Network Hardware for the Interconnect   ã   Private dedicated network switches (redundant switches recommended), connected to the private interface ports for each cluster member node. NOTE: If you have more than one private network interface card for each server, then Oracle Clusterware automatically associates these interfaces for the private network using Grid Interprocess Communication (GIPC) and Grid Infrastructure Redundant Interconnect, also known as Cluster High Availability IP (HAIP). ã   The switches and network interface adapters must be at least 1 GbE, with 10 GbE recommended. Alternatively, use InfiniBand for the interconnect. ã   The interconnect must support the user datagram protocol (UDP). Oracle Flex ASM Network Hardware ã   Oracle Flex ASM can use either the same private networks as Oracle Clusterware, or use its own dedicated private networks. Each network can be classified PUBLIC or PRIVATE+ASM or PRIVATE or ASM. ASM networks use the TCP protocol. Cluster Names and Addresses : Determine and configure the following names and addresses for the cluster ã   Cluster name : Decide a name for the cluster, and be prepared to enter it during installation. The cluster name should have the following characteristics: ã   Globally unique across all hosts, even across different DNS domains. ã   At least one character long and less than or equal to 15 characters long. ã   Grid Naming Service Virtual IP Address (GNS VIP): If you plan to use GNS, then configure a GNS name and fixed address on the DNS for the GNS VIP, and configure a subdomain on your DNS delegated to the GNS VIP for resolution of cluster addresses. GNS domain delegation is mandatory with dynamic public networks (DHCP, autoconfiguration).
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