oracle rac training

Oracle Rac 11.2.0.3 migrate OCR and VOTEDISK, 11.2.0.3votediskEnvironment: AIX7.1 + Oracle Rac 11.2.0.3Migration Description: When Oracle Rac is installed today, the GB Data disk is incorrectly used as OCRDG. Therefore, it will be

Oracle RAC normal restart sequence:Oracle 10g rac:Generally, the 10g RAC (ASM) Switch sequence is as follows:1) Stop Oracle RAC 10g environmentStop the Oracle instance first. When this instance (and related services) is closed, th

Someone asked me how to differentiate whether RAC is Admin or Policy managed after it is created.First, we should look at the definition:Administrator-managed: Database administrators define the servers on which databases resource run, and place resources manually as needed. This is the management strategy used in previous releases. Policy managed: Database administrators specify in which server pool (excluding generic or free) the database resource w

Oracle 11gR2 RAC database cannot be connected (Ora-12537:tns:connection closed) Resolution[Email protected] ~]$ Sqlplus/nologSql*plus:release 11.2.0.1.0 Production on Wed 29 21:06:10 2012Copyright (c) 1982, Oracle. All rights reserved.Sql> Connect system/*** @asttERROR:Ora-12537:tns:connection closed[Email protected] app]# ls-ltrDrwxr-xr-x 3 root oinstall 409608-

Install Oracle 10g RAC on VMware Server 2.0.2, no error is reported at all for www.2cto.com IP planning 192.168.8.241194258.242192.168.8.248192.168.8.249 rac1-> export LANG = en_US.UTF-8 vi/etc/sysconfig/network-scripts/ifcfg-eth0vi [root @ rac2 ~] # More/etc/sysconfig/network-scripts/ifcfg-eth0 # Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE] DEVICE = eth0BOOTPROTO = noneIPADDR = 192.168.8.242ONBOOT =

[Translated from mos] What is split-brain in Oracle Clusterware and RAC? mosclusterware What is split-brain in Oracle Clusterware and RAC? Source:What is Split Brain in Oracle Clusterware and Real Application Cluster (Document ID 1425586.1) Applicable:Oracle Database-Enterpr

Rac1 is not running on node Rac1Instance Rac2 is not running on node race2. Stop have (high availability Services), must be operated as root user[Email protected] oracle]# Cd/u01/grid/11.2.0/grid/bin[Email protected] bin]#./crsctl Stop Has-f[Email protected] bin]#./crsctl Stop Crs-fThis command only shuts down the CRS service for the current node, so it needs to be executed on all nodes of the RAC, as well

Label:What are the brain fissures in Oracle Clusterware and RAC From:What's Split Brain in Oracle clusterware and Real application Cluster (document ID 1425586.1) Suitable for:Oracle database-enterprise edition-version 10.1.0.2 and laterInformation in this document applies to any platform. Objective:This article explains the brain fissures in

Os:redhat as 4 Oracle:oracle10gr2 The customer presents a request to demonstrate the recovery of RAC DB to single-instance, and their purpose is to verify the backup effectiveness of the production environment Here are the ideas and the main steps: 1. First generate an init parameter file under RAC DB 2, modify parameters, Cluster_database to false and shielding Local_listener and other parameters rela

1. GSD global services daemonDescription of Oracle official documentation The global services daemon (GSD) runs on each node with one GSD process per node. the GSD coordinates with the Cluster Manager to receive requests from clients such as the dbca, em, And the srvctl utility to execute administrative job tasks such as instance startup or shutdown. the GSD is not an oracle instance background process and

)-----------------------------------------------------------------------------------CD $ORACLE _base/diag/rdbms/' echo ${oracle_sid%?} '/$ORACLE _sid/trace; Tail-f Alert_$oracle_sid.log-----------------------------------------------------------------------------------# # 5.4 OS log (root)-----------------------------------------------------------------------------------Tail-f/var/adm/syslog/syslog.log------

benefit from it. Technically, Oracle ASM is applied as a special Oracle instance, with its own SGA, but without a continuous dictionary. In RAC, each cluster node has and has only one individual ASM instance. When started, each instance detects ASM disk group resources in the grid infrastructure through initialization parameters in the cluster software. Each ins

Environment descriptionOperating system: redhat6.4 64-bitOracle version: 11.2.0.4 RAC (two node)Disk array: Macro bin 3300eProblem descriptionWhen implementing a RAC cluster years ago, there is only one set of paths in the operating system where the RAC cluster resides, and the other set of redundant paths does not appear, but the

Label:Oracle RAC has both ha (high availiablity) and lb (loadbalance). And the basis of its highly available Failover (fail over)It means that the failure of any node in the cluster will not affect the user's use, the user connected to the failed node will be automatically transferred to the health node, from the user experience, is not feel the switch. the Oracle 10g

Tags: oracle RAC DRM Mastersome summary of DRM1. What is DRMDRM (Dynamic Resource Management) is a new feature of Oracle 10g, where Oracle uses GRD (Global Resource Service) to record resource information for individual nodes in an Oracle

Label:"[Cssclnt][1]clsssinitnative:connect failed, RC 9" is a common problem encountered in Oracle RAC, mainly during the installation process and during startup. Often the Css*.log file in the $ora_crs_home/log/The main meaning of this error is that the CSSD process connection between the RAC nodes fails, the communication is not effective, the CSSD process comm

Use VBox to simulate storage migration environments, os:rhel5.9,db:oracle 10.2.0.4 RAC ASM 2Nodes. ASM uses extern redundancy, which does not use ASM's rebalance functionality, and OCR and Votedisk are stored in raw. Migration includes Controlfile,datafile,tempfile,spfile,ocr,votedisk. Path before migration OCR/DEV/SDF1/DEV/RAW/RAW1,/DEV/SDF2/DEV/RAW/RAW2 VOTEDISK/DEV/SDG1/DEV/RAW/RAW3,/DEV/SDG2/DEV/RAW/RAW4,/dev/sdg3/dev/raw/raw5 ASM +data/dev/

1. Check if RAC is normal[Oracle @ racdb01 ~] $ Crs_stat-TName type target State host------------------------------------------------------------Ora. RAC. DB application online racdb01Ora... s1.inst application online racdb01Ora... s2.inst application online racdb02Ora... esdb. CS application online racdb01Ora... es1.srv application online racdb01Ora... es2.srv a

RedHat EL5 installation of Oracle 10g RAC-Build LibrarySystem 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/M00/26/2A/wKioL1NqAeDQ-M09AAGvUOVml00157.jpg "title=" Rac.png "alt=" Wkiol1nqaedq-m09aagvuovml00157.jpg "/>Iv. establishment of a

--------------------------------------------------------------------------------------------------------------- ---------------------------Rman> Show snapshot controlfile name;Rman> Configure snapshot Controlfile name to '/STORAGE/SNAP_CONTROL/SNAPCF_%D_%I_%S_%P_%T.F ';Rman> Configure snapshot Controlfile name to ' +DATA/ORCL/SNAPCF_ORCL.F '; --can also be specified to the corresponding ASM disk group (disk group does not support wildcard naming)After you put the control file snapshot on the sha