oracle rac cluster

downgrade; special handling is required ifDowngrading to 9i. This is the old crs version in the formatA. B .C.D. E (e. g 11.1.0.6.0 ).-Deconfig Remove Oracle Clusterware to allow it to be uninstalled or reinstalled-Force Force the execution of steps in delete or dwongrade that cannotBe verified to be safe-Deinstall Reset the permissions on CRS home during de-configuration-Keepdg Keep existing diskgroups during de-configuration-Unlock Unlock CRS home-

Tags: Oracle Tutorials Oracle Training Oracle Database Tutorials Oracle Engineers training Oracle Database TrainingI. Subject of the course Wind Brother Oracle Database Tutorial 12CR2 (Project Combat VII): Oracle12.2

The recent RP value was a little low, and yesterday began to install a 10g RAC.Encountered n many problems. After resolving the problem with the raw device, the error follows when the second node executes root.sh: [Root@rac2 ~]#/u01/app/oracle/product/crs/root.sh Warning:directory '/u01/app/oracle/product ' isn't owned by root Warning:directory '/u01/app/oracle

1. Oracle cluster architecture1. Oracle RAC is the Real Application Cluster of Oracle. It is a parallel Cluster system provided by Oracle. T

Sync Service (Cluster Synchronization Service)managing membership of a cluster node controls which node is the member of the cluster, the node notifies the cluster member when joining or leaving the cluster to control the cluster

About RACFor preparations and planning for the cluster, see my previous blog. Http://devliangel.blog.51cto.com/469347/1288235 About ORACLE RACFor more information about the advantages and disadvantages of clusters, see the following documents or go to the official website. Http://baike.baidu.com/view/3153034.htm 1. decompress the cluster package; Gunzip 10201_cl

Cluster clusterware (1) of RAC introduces the concept of clusterware cluster, and read several articles to help understand the concept: Oracle cluster Software Architecture: To install an oracle

Label:Oracle RAC Learning notes: Basic concepts and Getting Started April 19, 2010 10:39 Source: Book's Blog book Editor: Xiao Xiong【Technical Development Technical Articles】Oracle 10g Real Application Clusters introduction1. What is clusterA cluster is made up of two or more independent, network-connected servers. Several hardware vendors have been providing a v

Label:Data Guard is a remote replication technology for Oracle, it has physical and logical points, but in general, it needs a separate system in a remote location, two sets of hardware configurations can be different systems, but the software structure of the two systems are consistent, including the software version, directory storage structure, and data synchronization (in fact, is not real-time synchronization), the two sets of systems as long as

Data Schema Primary: The code is as follows Copy Code hostname databasename unique_dbname INSTANCE_NAME RAC1 orclpd orclpd ORCLPD1 rac2 orclpd orclpd ORCLPD2 Standby:HOSTNAME DATABASENAME Unique_dbname instance_nameRAC21 ORCLPD Orclst Orclst1RAC22 ORCLPD Orclst Orclst2 RAC ASM DiskGroup (vote) ASM DiskGroup (Database managefile) ASM DiskGroup (Recovery Manage)Primary DATA DATA1 DATA2Standby DATA DATA1 DATA2 [

/tmp/patch/14727310/tmp/patch/15876003/custom/server/15876003/custom/scripts/postpatch.sh-dbhome $ORACLE _homeSu-root[Email protected] ~]#/g01/11ggrid/app/11.2.0/grid/rdbms/install/rootadd_rdbms.sh[Email protected] ~]#/g01/11ggrid/app/11.2.0/grid/crs/install/rootcrs.pl-patch15. Install Oracle database using DBCA16,rac monitor installed grid automatically created,

The Data Guard is Oracle's remote replication technology, which has physical and logical points, but in general it needs to have a separate system in place, where two hardware configurations can be different, but the software structure of the two systems is consistent, including software versions, directory storage structures, As well as the data synchronization (in fact, is not real-time synchronization), the two systems as long as the network is available, is a remote disaster-tolerant solutio

Label: five advantages and disadvantages of Oracle RACdifferent cluster products have their own characteristics, RAC features include the following points: dual-machine parallel. RAC is a parallel mode, not a traditional master and standby mode. That is, all members of the RAC