oracle rac concepts

In general, Oracle 11g R2 RAC provides the following features: High Availability: shared-everything mode ensures that services are not stopped when a single node fails, and other nodes in the cluster will take over quickly Scalability: multiple nodes share the load and can provide processing capabilities far beyond that of a single database. Addition and deletion of nodes can be completed online without

Tags: Zha workspace deploy ble app htm ack sysdba sizeLinux platform Oracle 10GR2 (10.2.0.5) RAC installation PART3:DB installation and upgradeEnvironment: OEL 5.7 + Oracle 10.2.0.5 RAC 5. Installing database Software 5.1 Unpacking the installation media 5.2 Start installing the DB software 5.3 Root U

Operating Environment: Server:oracle 10g RAC Client:toad for Oracle 8.6 Description of the problem phenomenon: Set a breakpoint on stored procedure load in editor, followed by the following error prompts: Ora-12560:tns:protocol Adapter Error Cannot connect debug session. In, to debug, connected to a RAC instance you must have entries for the individual

Oracle 11g Audit The Oracle audit (Audit) function is used to monitor database operations performed by users. audit records can be stored in data dictionary tables (called audit records: SYS. in the AUD $ table, view dba_audit_trail) Or operating system audit records (default location: $ oracle_base/admin/$ oracle_sid/adump. Regardless of whether or not the database audit function is enabled, the following

: done [[Emailprotected]~]#/usr/sbin/oracleasmscandisks Reloadingdisk partitions:Done Cleaninganystaleasmdisks ... Scanningsystemforasmdisks ... [[Emailprotected]~]#/usr/sbin/oracleasmlistdisks DISK1 DISK2 DISK3 DISK4 DISK5 [[emailprotected]~]#yuminstall-ykmod-oracleasm* [[emailprotected] ~]#rpm-ivhoracleasmlib-2.0.4-1.el6.x86_64.rpm [[emailprotected]~]#rpm -ivhoracleasm-support-2.1.8-1.el6.x86_64.rpm [[emailprotected]~]#/usr/sbin/ Oracleasmconfigure-i Configuringtheoracleasmlibrarydriver. Th

Label:Environment Introduction: OS: both [[email protected] ~]# uname-a Linux java3 2.6.18-308.el5 #1 SMP Tue 20:06:06 EST. x86_64 x86_64 x86_64 Gnu/linux Main Library: Database version: 11.2.0.3.0 Two nodes of RAC node one: 192.168.15.26 node Two: 192.168.15.27 Standby database version: 11.2.0.3.0 IP 192.168.15.9 Repository installed only database software not built Specific steps: One: Install the database software on 192.168.15.9 This server, not m

[Oracle] deletes a node from RAC, which is a oraclerac node. Environment: OS: OEL5.6 RAC: 10.2.0.1.0 There are currently three rac1, rac2, and rac3 nodes. The following describes how to delete a rac3 node. 1. Delete the database instance on the rac3 Node [Oracle @ rac1 ~] $ Dbca-silent-deleteInstance-gdbName RACDB-inst

RAC asm restored to a single instance Rac source server: Rac1: 192.168.100.201 Rac2: 192.168.100.202 Target Server: 192.168.8.201 The recovery procedure is as follows: Restore the initialization parameter file-> modify the parameter file-> restore control file-> resotre data file-> recover data file1. Correctly install a single instance database. 1) Check the rac

Oracle RAC Full name: Oracle Real Application Clusters, that is, Oracle Real-Time ApplicationProgramCluster, so that different applications can access multiple Oracle instances as if accessing one Oracle instance (of course, the

The two machines use disk arrays to store ORACLE data files for RAC. Configure an Oracle service. In this way, the client can configure the Oracle address and service description on the two machines. JDBC: oracle: thin :@(Description =(Load_balance = yes)(Failover = on)(Add

Before learning a new thing, you need to understand its purpose. Article This section describes the advantages and disadvantages of Oracle RAC and other four components for future reference. The full text is as follows: To improve performance, we have made a lot of trials on the methods or solutions provided by the Oracle database itself.It mainly includes:S

Oracle 11g R2 rac rman backup script example 1. Switch RAC to archive Mode 1. Modify the archive mode of the database. Generally, archive is configured and the flash back area is used when RAC is installed. you can skip the steps below if you have configured archive. SQL> alter system set cluster_database = false scope

10G RAC installation encountered the failed to upgrade Oracle Cluster Registry configuration, caused by the use of the DMM multipath software Device-mapper-multipath to trigger this bug.About the DMM multi-path software Device-mapper-multipath installation RAC, reference document Configuring RAW Devices (Multipath) for Oracle