1.1RAC System Description
Oracle rac is a cluster system launched by ORACLE for ORACLE Database. RAC is short for real application cluster, which means a real application
Tags: style io os ar strong SP file Data div2.3. Configure the shared disk 2.3.1. Create a shared diskEnter the WMware Workstation 10.0 installation directory in CMD:
1. Create a disk that stores the Oracle Clusterware file (Oracle Cluster Registry and voting disk):Vmware-vdiskmanager.exe-c-S 4gb-a lsilogic-t 2 "E:\SoftwareInstall\vmware\SharedDis
How do you setup/remove/modify cluster synchronization services daemon (cssd) on a non-RAC system (init.css d )?
Each of the localconfig operations need to be run as root$ ORACLE_HOME refers to the home used by ASM
Setup/Add==============
If the CSS is missing either due to specifically excluding it at install time... or it was later removed
$ ORACLE_HOME/bin/localconfig add (for UNIX)Or
Remove/delete===
Due to some remote installation requirements, the remote interaction of the oui gui is slow, which may affect the speed of DBA's RAC installation. Or some enterprises disable XWindow, which also causes failure.
Due to some remote installation requirements, the remote interaction of the oui gui is slow, which may affect the speed of DBA's RAC installation. Or some enterprises Disable X Window, which also cau
1. Oracle cluster architecture: OracleRAC, the full name is OracleRealApplicationCluster, which is a real application cluster. It is a parallel cluster system provided by oracle. The entire cluster system is composed of OracleClus
activeversion
CRS active version on the cluster is [10.2.0.5.0]
[[emailprotected] ~]$ crsctl query crs activeversion
CRS active version on the cluster is [10.2.0.5.0]
[[emailprotected] ~]$ crs_stat -t -v
Name Type R/RA F/FT Target State Host
----------------------------------------------------------------------
ora....b27.gsd application 0/5 0/0 ONLINE O
to a cache fusion resource, and the cache fusion resource is actually a data structure, and the name of the resource is the data block address (DBA). Each data request action is done in a step. First, convert the block address X to the cache fusion resource name, and then submit the cache Fusion resource request to the DLM, the DLM for the global lock application, release the activity, only the process obtains the PCM lock to continue the next step, That is, the instance obtains the right to us
1. Overview of the situation:Morning Company A business system Zabbix alarm not sync data, after the troubleshooting log has connect reset situation:2, problem analysisAfter the analysis of the network, system resources, database system resources, the AWR report did not find detailed anomalies. Then troubleshoot the analysis of whether the node is stuck:Oradebug Hanganalyze 33. Oracle website SearchSearch by GC Freelist4, the solution method:According
disk during the compilation process.In cache fusion, each chunk is mapped to a cache fusion resource, and the cache fusion resource is actually a data structure, and the name of the resource is the data block address (DBA). Each data request action is done in a step. First, convert the block address X to the cache fusion resource name, and then submit the cache Fusion resource request to the DLM, the DLM for the global lock application, release the activity, only the process obtains the PCM loc
respectively.
3. decompress the Deploycluster Tool
[root@ovm199 ~]# unzip DBRACOVM-Deploycluster-tool.zip
4. Create the netconfig. ini file.
[root@ovm199 deploycluster]# cat netconfig.ini# Node specific informationNODE1=racnode1NODE1IP=192.168.1.231NODE1PRIV=racnode1-privNODE1PRIVIP=10.10.10.231NODE1VIP=racnode1-vipNODE1VIPIP=192.168.1.233NODE2=racnode2NODE2IP=192.168.1.232NODE2PRIV=racnode2-privNODE2PRIVIP=10.10.10.232NODE2VIP=racnode2-vipNODE2VIPIP=192.168.1.234# Common dataPUBADAP=eth0PUBMA
Oracle Study-Oracle RAC reconstruction Control File
System Environment:Operating System: AIX5.3
Cluster: Oracle 10gR2 CRSOracle: Oracle 10gR2
Rebuild the control file in the RAC environ
I. Introduction to RAC 1, high availability refers to a comprehensive solution that integrates hardware and software technologies. It guarantees that the application (service) can run uninterrupted without losing data, that is, the effectiveness of the service or the sustainable access of the service. Features: Reliability: Reliable hardware and reliable software recoverability: Provides a variety of mechanisms to Ensures that lost data and fai
RAC Cluster replacement IP is divided into three main steps: Stop the Cluster service, configure the server network, modify the cluster configuration. The following is an example of a replacement IP in the same network segment. (R7, R8 is the server name, ORCL is oracle_sid,scanip as the scan name).Stop
transactions per second. Only the largest Oracle databases in the world need to be extended to use RAC.
Oracle RAC is an independent high-availability solution
Remember that RAC can only protect you from instance failures, which is only one of the many reasons that may c
Introduction to Oracle RAC clusters, processes, and logs
In a single-host environment, Oracle runs on the OS Kernel. OS Kernel manages hardware devices and provides hardware access interfaces. Oracle does not directly operate the hardware, but has an OS Kernel instead to complete the hardware call request.
In a
After Oracle 11g RAC is installed, why does crsd on the second node fail to start? The error message is CRS-4535: cannot communicate with cluster ready services. The specific error information must be viewed in the crsd. log.
1. Environment [root @ linux2 ~] # Cat/etc/issue Enterprise Linux Server Release 5.5 (Carthage) kernel \ r on an \ m [root @ linux2 bin] #
Steps for migrating a single Oracle DataBase instance to Oracle RAC:
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Detailed illustration of the entire process of VMware + Linux + Oracle 10G RAC
Install
different 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 cluster can receive client requests at the same ti
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