CRS Command and UNKNOW status solution
常用的crs命令如下:$ORA_CRS_HOME/bin/crs_stat –t 此命令主要用来检查crs资源状态例如[oracle@rac2 css]$ $ORA_CRS_HOME/bin/crs_stat -tName Type Target State Host ----------------------------------...
9i jdbc thin drive不支持Load balance
环境是WebSphere 6.0连接10g rac的时候连接出现负载均衡的问题。原因:当前WebSphere 6.0的JDBC驱动是9i的, 而且9.2.0.8以前的jdbc thin drive是不支持rac的负载均衡JDBC Thin does not support redirection to anot...
CM 8.4.2 Listener configuration in RAC env
SID_LIST_LISTENER_CMSUN17 =(SID_LIST = (SID_DESC = (SID_NAME = ICMLSExtProc) (ORACLE_HOME = /oracl...
Quick steps to rebuild the CRS
Root user to perform. the following scripton node1------------cd $ORA_CRS_HOME/install./rootdelete.shon node2------------cd $ORA_CRS_HOME/install./rootdelete.shon node1 only--------------cd $ORA_C...
How to Change Interconnect/Public Interface IP or Subnet in Oracle Clusterware
Metalink 283684.1Purpose:----------------The purpose of this note is to describe how to change or update the cluster_interconnect and/or public interface IP information that is stored in the OCR. ...
Modifying the VIP or VIP Hostname of a 10g or 11g Oracle Clusterware Node
Metalink 276434.1Purpose--------------The purpose of this note is to illustrate the changing of a Virtual IP Address (VIP) or VIP hostname or other VIP parameters in an Oracle10g RAC/Oracle Clusterwar...
10.2.0.3 VIP 漂移问题
问题描述: 3节点的Oracle 10.2.0.3版本RAC Oracle Patch merge6平台上主机P570,操作系统AIX 5***没有压力状态下,拔掉节点node1的2根public网线,发现VIP重启累计用时如下: ...
Change AUTO_START in ASM Resource Oracle Clusterware
When a node stops and restarts, Oracle Clusterware starts the instance as soon as the node starts. This may not be desirable because instance startup might fail if system ...
Oracle RAC active-passive mode
ACTIVE_INSTANCE_COUNT enables you to designate one instance in a two-instance cluster as the primary instance and the other instance as the secondary instance. This parameter has no functionality in a...
How to Clean Up After a Failed Oracle Clusterware (CRS) Installation
PURPOSE-------The purpose of this document is to help DBA's and support analysts understand howto clean up a failed CRS (Cluster Ready Services) install for 10g RAC. SCOPE & APPLICATION----------...
OCR和VOTING DISK的MIRROR DISK的添加和删除及备份
一、添加OCR1) 停止crs,分别在所有节点执行# /u01/app/oracle/product/10.2.0/crs_1/bin/crsctl stop crsStopping resources.Successfully stopped CRS resourcesStopping CSSD.Shutting down CSS daemon.Sh...
How to redirect the TAF Service to preferred node?
As we know If a node in the RAC environment is crashed or shutdown abnormally.We can adopt to use the DBCA to generate a TAF service to achieve the failover between two or more nodes in the Real appli...
RAC中的虚拟IP
10g 中为什么使用虚拟 IP (VIP)?为什么当它的主节点发生故障时不只是返回一个无效的连接呢? 这全是出于对应用程序可用性的考虑。当一个节点发生故障时,与其关联的 VIP 将被自动故障切换到另外某个...
iSCSI技术
这两天在研究如何用openfiler来搭建一套廉价的Oracle RAC环境,下面引用的文本是对iSCSI技术的一个简短的介绍: 多年以来,一直用于构建基于网络的存储解决方案的唯一技术就...
如何安全卸载Oracle RAC(转)
因为测试需要,我会比较频繁的安装和卸载Oracle Clusterware,RAC,卸载和安装本身都有OUI工具可以使用,但是速度比较慢,而且需要过多的人工干预。如果直接把OracleHome删掉,杀掉所有相关进程,重启机器也可以解决...
RAC的时间同步问题
今天在两个节点上面安装RAC,在安装clusterware的时候OUI总是提示失败.查到资料的得知:特此记录:需要在在所有的集群节点上设置正确的日期和时间 在安装 Oracle 集群件、数据库以及随附 CD 期间,Oracle Univers...
CentOS4.6安装Oracle 10g RAC tips
花了一点时间在自己的环境上安装了一个Oracle 10g RAC环境安装的步骤比较烦琐而且有些麻烦www.oracle.com/technology/global/cn/pub/articles/chan-ubl-vmware.html自己也总结了一些tips以备忘:准备磁盘(shared d...
Oracle RAC基本概念
------------------RAC体系结构------------------在一个应用环境当中,所有的服务器使用和管理同一个数据库,目的是为了分散每一台服务器的工作量,硬件上至少需要两台以上的服务器,而且还需要一个共享存储设备。...
ASM数据库的一个测试
本次测试通过添加和删除磁盘重点关注于"自动数据平衡"的功能其中有三个视图是需要关注的:v$asm_operationv$asm_diskgroupv$asm_disk通过查询这三个视图来体现,自动数据平衡的功能。在ASM实例中:************SQL...
创建ASM实例和数据库
由于ASM实例是工作在Oracle instance上面,因此创建ASM的instance就是我们工作的第一步。共分六步骤1.create initial parameter files2.create orapwd files3.create the directory structure4.startup the instance...