oracle data guard apply lag

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

Tags: is technology sharing images session learning notes es2017 physical standby Sele 1.5DG is a backup recovery tool, but more strictly the meaning of it is disaster recovery Data Guard is a collection of one primary database and one or more standby databases, divided into two classes of logical standby and physical standby 10.2.1 preparation of physical standb before creation Whether it is physical stan

[Oracle] Data Guard series (3)-log application Redo application or SQL application? We know that there are two types of standby databases: Physical standby database and logical standby database. The log application of the physical standby database is called the Redo application, the log application of the logical standby database is called the SQL application. Th

Environment: OS: Red Hat Linux As 5DB: 11.2.0.1 11G has greatly improved the volume uard, the slave database can still apply the archive logs uploaded from the master database. Remember to open the slave database to check whether the data has been transmitted at 10 Gb, you must stop the log application first. the following describes how to create a physical standby database. The database adopts the common f

[Oracle] Data Guard-Redo applications physical Standby and logical Standby Log application services are divided into two types, one is physical Standby Redo applications, similar to media recovery, its advantage is that the speed is fast, but in 10g cases, Standby must be in the mount State and cannot share part of the read load for Primary (physical Standby can

ORACLE 11G Data Guard role conversion, 11 gguard1. ORACLE login uard Role SwitchingDataGuard is now the mainstream disaster tolerance solution. Due to its strong adaptability to the network, it can adopt synchronous real-time transmission mode and asynchronous delay transmission mode, it can even become a remote disast

[Oracle] Data Guard series (6)-role conversionThe core function of DG is to provide high-availability Disaster Tolerance. Therefore, the role conversion content described in this section is the most important part of DG. Role Switching between master and slave databases of DG is divided into the following two types: 1) SwitchoverSwithchover refers to role switchi

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

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

The data guard provides the following three kinds of protection modes: 1 Maximum protection mode (Maximum Protection) "Maximum protection" here refers to the maximum protection of the data is not lost, that is, at least one standby and primary maintain real-time synchronization, but this is costly, that is, when a transaction is committed, not only to write to

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

OriginRecent 10g and 11g physical standby configuration experiments found that Data Guard is actually easy, but lacks good documentation. I was experimenting with the official documentation and thought it wasn't very clear.Google out of two PDF documents, read it feel much stronger than official documents. It may be useful for some friends to translate. I am also better acquainted with these two documents w

The data guard provides the following three kinds of protection modes: 1 Maximum protection mode (Maximum Protection) "Maximum protection" here means that the maximum protection data is not lost, that is, at least one standby and primary maintain real-time synchronization, but this is costly, because as long as a transaction is committed, not only to write to t

When the application redo log is started, the redo log is canceled when the application is disabled:8.1 Starting Up and Shutting Down a Physical Standby Database This section describes the SQL * Plus statements used to start up and shut down a physical standby database.8.1.1Starting Up a Physical Standby Database8.1.1 start the Physical Standby Database To start a physical standby database, use SQL * Plus to connect to the database with administrator privileges, and then use either the SQL * Plu

[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

1. Architecture In Oracle 10g, the process for transmitting logs to the standby node database is ARCH and LGWR. (In 11g, LGWR is replaced by LNS, but I'm not sure if it is LGWR in 10g !) The slave node receives logs by using the log_archive_config, fal_client, and fal_server parameters, and communicates with the master node to identify whether the log is applied. Data G