oracle rac architecture

, the 11.2.0.1 RAC that is installed on the virtual machine is chosen 11.2.0.1 because of problems with public IP and private network segments. During the installation instance, the computer crashes and restarts, and CRS fails to start. [Root@rac1 bin]#./crsctlstart CRS Crs-4124:oracle highavailability Services startup failed. Crs-4000:command startfailed, or completed with errors. [Root@rac1 bin]# Ps-ef|

Vip/public/private IP Differences in RAC environmentsEach node to 2 network card, 3 IP, virtual IP or called the business IP, a single network card when it can "drift" to the other network card is to continue to provide servicesIn the Oracle RAC Environment, each node will have multiple IP addresses, respectively, PUBLIC/PRIVATE/VIP, what is the difference betwee

RedHat EL5 Installing the Oracle 10g RAC--oracle Software InstallationSystem environment:Operating system: RedHat EL5Cluster:oracle CRS 10.2.0.1.0Oracle:oracle 10.2.0.1.0: RAC System Architecture650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/26/28/wKioL1Np_tziLDXcAAGvUOVml00321.jpg "title=" Rac.png "alt=" W

I. Introduction One of the most effective ways to familiarize yourself with Oracle's true application cluster (RAC) 10g technology is to access an actual Oracle RAC 10g cluster. There is no way to better understand their benefits than simply experiencing them-including fault tolerance, security, load balancing, and scalability. The core of

the Oracle RAC database environment has a lot in common with a single-instance database environment, as well as many heterosexual. The same is true for updates to database patches, which can be done through Opatch. However, patch updates for the RAC environment are updated in several different ways, and even rolling upgrades can be implemented for all nodes in th

Oracle study--oracle 11gR2 RAC CRS startup failureSystem environment:Operating system: RedHat EL5Cluster:oracle 11gR2 GridOracle:oracle 11gR2In a RAC environment, one of the nodes CRSD the process failed to start:[[email protected] ~]$ CRSCTL Check CRSCrs-4638:oracle High Av

In 11.2, the CRSD process is no longer one of the most critical processes in RAC. If you are familiar with 10g RAC, you should be aware of the importance of the CRSD process, and Oracle starts the process and then launches the entire cluster and database after the operating system starts. In the 11.2 RAC,

Oracle study--oracle 11gR2 RAC CRS startup failure (CRS-4000)System environment:Operating system: RedHat EL5Cluster:oracle 11gR2 GridOracle:oracle 11gR2The following error occurred while initiating a node CRS:[[email protected] ~]# crsctl start CRS Failure at Scls_scr_getval with code 1 Internal Error information:category: -2 operation:opendir location:scrsearch1

Oracle 11g R2 RAC: Configure DNS resolution scan vip Oracle 11gR2Grid Infrastructure (CRS) introduces Single Client Access Name (SCAN) to simplify Client Access to database services. This article will introduce in detail how to configure DNS to resolve scan vip demonstration environment OracleEnterprise Linux 5.6 I. Install DNS Server Rpm-ivhbind-9.3.6-16.P1.el5.

Kind Oracle 11GR2 RAC installation configuration-Prerequisite configuration phase Installing the Oracle 11GR2 11.2.0.4 RAC cluster based on Linux RedHat 6.4 in Vmwarevcenter server 1. Network Planning Where public and private are divided into different network segments. Guaranteed Safe Transmission [root@zracnode1~]#