oracle data guard synchronous replication

]: Selected log + F or T-1. S-144 dbid 1507958524 Branch 9801777902018-07-18t16:08:01.892027+08:00archived Log entry added for T-1. S-143 ID 0x59e1d0fc lad:12018-07-18t16:08:01.974669+08:00media Recovery waiting for thread 1 sequence 144 (in transit) 2018 -07-18t16:08:01.974916+08:00recovery of Online Redo log:thread 1 Group-Seq 144 Reading mem 0 mem# 0:/data/orada TA/ORCL/REDO14.LOG2018-07-18T16:10:04.097893+08:00RFS[1]: Selected log for T-1. S-145 d

I configured data guard when I had never been familiar with Oracle before. Paid download a detailed configuration document for data guard 11g in Windows (requires a mailbox), but many of the parameters must be modified according to their own environment, this is quite diffic

Does the Data Guard broker change attributes to be executed separately on both sides?Data Guard Broker has some properties that can be seen through show configuration.I sometimes wonder if these attributes, respectively, belong to primary and standby, and ifIf you want to change, do you need to log in to primary and st

mysql| Backup | data | data synchronization Setting up MYSQL Data synchronization MySQL provides database replication functionality after version 3.23.15. The function of two database synchronization, master-slave mode and mutual backup mode can be realized by this feature. The settings for database synchronization

Oracle Data Guard Create a physical standby database Create a physical repository Machine name A1 A2 ip:192.168.1.10 192.168.1.20 Net_name A1 A2 SID A1 A2 Db_unique_name A1 A2 Note: Create the database A1 on the master node, install only Oracle software on the standby node and do not create any databases; 1. Co

About Oracle Data Guard Role Switching 1. Overview Oracle database uses its Data Guard technology to implement a remote security mechanism for Data in

For non-Data Guard patch installation tutorials, refer to [Oracle] CPU/PSU patch installation detailed tutorial. Data Guard requires both Primary and Standby patches, so the steps are more complex, the main steps are as follows:1. Stop the log transmission service in Primary

switch to the primary role. Otherwise, confirm that the Redo app is started until the query results show to primary or sessions ACTIVE. 7. Switch the physical standby to the primary role Execute the following SQL on the target physical standby: Sql> ALTER DATABASE COMMIT to switchover to PRIMARY with SESSION SHUTDOWN; Note: If the query results in step 1th are to PRIMARY, the WITH SESSION shutdown clause in the SQL statement can be omitted.

: Sql> SELECT switchover_status from V$database; As long as the Switchover_status query result is to standby or sessions ACTIVE, the switchover between the primary and the logical repositories is indicated. Otherwise, see if the data Guard is configured correctly, such as if all the Log_archive_dest_n parameters are configured correctly. 2. Preparing to switch to the c

The following is the data Guard CPU/PSU patch installation method for a detailed analysis of the introduction, the need for friends can refer to the next Non-Data guard patch installation tutorials refer to the [Oracle] CPU/PSU patch installation detailed tutorial, where

Cross-platform database migration using Oracle Data Guard The customer was originally a single-host Oracle 11.2.0.3.0 Database for Windows Database system. The customer's requirement is to migrate the single-host Oracle Database to the three-node

[Oracle] Data Guard-Create physical Standby experiment environment Primary: Host: jabdw1241SID: O01DMS0DB_UNIQUE_NAME: O01DMS0Standby: Host: jabdw1242SID: O01DMS0DB_UNIQUE_NAME: O01DMS0DR 1. primary configuration and operations 1) confirm that primary is in archive mode PRIMARY> Archive log list; Database log mode archive ModeAutomatic archival EnabledArchive des

Non-Data guard patch installation tutorials refer to the [Oracle] CPU/PSU patch installation detailed tutorial, where Data Guard requires primary and standby to be patched at the same time, so the steps are more complex and the main steps are as follows: 1. Stop log transfer

Oracle Data Guard (RAC + DG) archive deletion policy 1. Data Guard master database archive deletion policy: When we set: RMAN> configure archivelog deletion policy to applied on standby; in Maximum Availability and Maximum Performance, when RMAN backs up the archive file and

;ConfigurationName:c1Enabled:yesProtection mode:maxavailabilityDatabases:Dg-primary DatabaseProd1-physical Standby DatabaseFast-start failover:disabledCurrent status for "C1":Warning:ora-16610:command "EDIT DATABASE prod1 SET Property" in progressDgmgrl> Switchover to PROD1Performing switchover now, please wait ...New Primary Database "Prod1" is opening ...Operation requires shutdown of instance "DG" on Database "DG"Shutting down instance "DG" ...Ora-01109:database not openDatabase dismounted.OR

* ERROR in line 1:ora-03113: End-of-file on communication channel--trying to manipulate the main library throw error Process id:4810 session id:28 Serial: Not connected to Oracle Sys@priocm> exit disconnected from Oracle Database 11g Enterprise Edition release 11.2.0.3.0 -Production with the partitioning, OLAP, Data Mining and real application testing options--t

[Oracle] role switching between Data Guard-Switchover and Failover Data Guard master/Slave databases can be divided into the following two types: 1) SwitchoverSwithchover is generally artificially scheduled for role switching, such as upgrading. It is usually lossless, that

Non-Data guard patch installation tutorials refer to the [Oracle] cpu/psu patch installation tutorial, where Data Guard requires primary and standby to be patched at the same time, so the steps are more complex and the main steps are as follows: Stop log transport service a

Oracle Data Guard from the macroscopic point of view, mainly provides the following two services: 1) Log transmission: The main library transmits the generated redo log to the standby library; 2 log application: The redo log, which is transferred from the main library, is used by the standby library. This article first describes the log Transport service, the

Lab environment: OEL + Oracle11.2.0.3 + physical standby As we all know, Data Guard is already the mainstream disaster tolerance solution of today's standards. Due to its strong adaptability to the network, it can adopt synchronous real-time transmission methods and asynchronous delay transmission methods, it can even become a remote disaster recovery solution. R