oracle data guard 12c

unhealthy state and you cannot close the database using the SHUTDOWN normal or SHUTDOWN immediate command.2. Need to close the database immediately3. A problem occurred while restarting the DB instanceAll running SQL statements will be terminated immediately, all uncommitted things will not be rolled, all users will be disconnected directly, and the next time the database is started, the instance recovery is required.·Friendly TipsIt is best to use the shutdown immediate method when you close t

Received the first recovery rescue using Oracle 12C as a production library. There are two business data file file headers damaged, other data files are all a September backup, under current conditions, hope we can help them recover the data in the business documentDatabase

Build Environment: Red Hat Linux Enterprise 5.4 Oracle 10g R2 The host operating system information is 192.168.199.128. Preparation: The master database (production database) DB_NAME = mustang SID = l already exists. Start building Data Guard First, you need to prepare the parameter file and set some necessary parameters. In the master database, the pfile file is

of existing IT investments and assets, regardless of the environment (operating system, application server, and so on) in which these assets are built and what technologies are used. Oracle SOA Suite focuses on ease-of-use and reuse, unified application development tools, and end-to-end lifecycle management to further help users reduce the cost and complexity of future development and maintenance.Features and benefits Support for mobile apps

Data Guard log transmission optimization ------ network transmission optimization practices (I) adequate network bandwidth is the basis for log transmission optimization www.2cto.com experience value budget formula: bandwidth demand = log generation/0.7X8 Note: oracle logs are generated in large bytes (8 bits), while the network bandwidth is small bit (1 bits) th

Create a temporary table spaceCreate temporary tablespace test_tempTempfile ' D:\app\orcl\oradata\temproryTestUserSpace\test_temp1.dbf 'Size 10m autoextendOn next 10m maxsize 50m extent management local;Create a data table spaceCreate tablespace test_data LoggingDataFile ' D:\app\orcl\oradata\temproryTestUserSpace\test_data1.dbf 'Size 10m autoextend on next 10m maxsize 50m extent management local;Create User Settings user passwordCreate User C # #XSCJ

Tags: bpm OracleProduct Overview Today's businesses are increasingly under pressure, such as globalisation, competitor changes, tougher market rules, faster innovation, better customer service needs, and more. and trends such as mobile, social, cloud computing, and business analytics have far-reaching implications for business and core processes. Businesses need business-driven processes to quickly achieve seamless collaboration with all business participants, and leverage deep insights to bette

-based Database recovery11th: Diagnostic and response data failure three (perform physical block recovery, perform rman recovery, perform table space point-in-time recovery, perform table and table partition Recovery)Performing data Block physical recoveryPerforming Rman Recovery: Advanced scriptingPerform point-in-time table space recoveryRecovering tables with Rman backup sets12th: Optimizing Rman Perform

Error: ORA-16501: the Data Guard broker operation failed ORA-16625: cannot reach database solution Create configuration file DGMGRL> create configuration 'sharkdbbork' as primary database is 'sharkdb' connect identifier is sharkdb; Error: ORA-16501: the Data Guard broker operation failedError: ORA-16625: cannot reach d

Data Guard configures Standby Redo Log Data Guard in maximum protection and maximum availability mode, for real-time use of the maximum performance mode, the Standby database must be configured with the Standby Redo Log www.2cto.com slave database to create and configure the Standby Redo Log to receive logs transmitted

Data Guard wonderful ORA-16191: Primary log shipping client not logged on standby problem engaged in a Data Gurad, switchover, check the Configuration: SQL> select dest_name,status,error from v$archive_dest where rownum ORA-16191 error reported. The alert log information is as follows: ------------------------------------------------------------PING[ARC2]: Heartb

The 11g active data guard implements rman backup for the standby database, so that the database can be backed up without affecting the external services of the primary database. The test is as follows: SQL> select OPEN_MODE, PROTECTION_MODE, PROTECTION_LEVEL, DATABASE_ROLE from v $ database; OPEN_MODE PROTECTION_MODE PROTECTION_LEVEL DATABASE_ROLE-------------------------------------------------------------

This article describes how to build a Acfs file system on a virtual machine that already has 12c RAC installed, and use the ACFS snapshot to brush a cow (Copy-On-Write) library to do the test library. Highlight Step: Add ASM disk to virtual machine to build Acfs file systemSecond, create Acfs file systemThird, create the database on the Acfs file system in Node 1. (12c supports

How to Use RMAN Incremental backup to restore data guard log gap (log disconnection), rmangapThe minimum scn information of the master database:SQL> col current_scn for 999999999999999SQL> SELECT CURRENT_SCN FROM V $ DATABASE;Select min (fhscn) from x $ kcvfh;Select min (f. fhscn) from x $ kcvfh f, v $ datafile dWhere f. hxfil = d. file #And d. enabled! = 'Read only ';CURRENT_SCN----------------126142052266

In Oracle Data Guard, the Redo Gap is generated because of some network or other problems, resulting in the interruption of the redo transmission. After the fault is eliminated, these redo files that have not been transferred will be discovered by some processes and transmitted to the slave database.Terms:ARC: archiving processMRP: Media Recovery Process, respons

RAC is designed to solve single point of failure (spof) and load balancing. However, only one copy of data exists in the RAC solution. The data itself is not redundant and is easy to form a single point of failure (spof ). Data Guard provides data protection through redundan

switchover into the master database SQL> alter database commit to switchover to primary with session shutdown; Database altered. 8. Verify Role Changes 101 machines:SQL> select database_role from v $ database; DATABASE_ROLE----------------PRIMARY 102 machines:SQL> select database_role from v $ database; DATABASE_ROLE----------------PHYSICAL STANDBY 9. View or modify log_archive_dest_2 SQL> alter system set log_archive_dest_2 = 'service = stydb '; System altered. 10. Restart the primary standby

. Apparently, throw the ORA-01031: insufficient privilegesWhen you use dbca to create a database, the key file is automatically created under $ ORACLE_HOME/DBS.If not, you can use the orapwd command line tool. Its file and password are required parameters,For example (assume that the current directory is $ ORACLE_HOME/DBS ):Orapwd file = orapworcl Password = Oracle entries = 30 (Linux/Unix naming rules: orapw [Sid]) ⑤ Set initialization parametersLis

Applies To: Enterprise Edition database-version 12.1.0.1 (12.1) The knowledge in this document applies to all platforms. Document purpose documents describe many aspects and usages of a pluggable database to better understand the product, and the document can also be used as a quick reference manual. Q-cdb/pdb conceptual knowledge in the 12c multi-tenancy architecture. What does pluggable database (PDB) mean in a multitenant architecture? The pluggabl

Data Guard has a gap sequence problem. I. Problem Description This afternoon, when the customer had a power failure, one of the standby database databases could not be started and the following error was reported. Media Recovery Waiting for thread 1 sequence 12364Fetching gap sequence in thread 1, gap sequence 12364-12364Wed Jan 17 15:20:57 2018FAL[client]: Failed to request gap sequence GAP - thread 1 sequ