Data Guard：Oracle 12c –新增和更新的功能 (Doc ID 1558256.1)

Posted 2021-03-22 Oracle&PostgreSQL

Data Guard: Oracle 12c – New and updated Features (Doc ID 1558256.1)

APPLIES TO:

Oracle Database - Enterprise Edition - Version 12.1.0.1 to 12.1.0.1 [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 13-Jul-2015***

PURPOSE

 This Note provides an Overview on all Data Guard-related New Features of the Oracle Database 12c  本说明概述了Oracle Database 12c的所有与Data Guard相关的新功能

DETAILS

New Standby Database Type ‘Far Sync Standby Database’:  新的备用数据库类型‘Far Sync Standby Database’：

This is a local ArchiveLog Repository (near the Primary Database) which is able to send Redo to a remote (far away) Standby Database. The remote Standby Database is a cascaded Standby of the Primary Database via the Far Sync Standby. So it is possible to serve a remote Standby Database with a higher Protection Mode even if the Network does not have full Performance. You can find further Details about Far Sync Standby here:

这是一个本地ArchiveLog存储库（靠近主数据库），它能够将Redo发送到远程（远处）的备用数据库。远程备用数据库是通过远程同步备用数据库的主数据库的级联备用数据库。因此，即使网络性能不佳，也可以为远程备用数据库提供更高的保护模式。您可以在此处找到有关远程同步待机的更多详细信息：

 Note 1565071.1: Data Guard 12c New Feature: Far Sync Standby

Creating a Physical Standby from Primary on Version 12c (Doc ID 1570958.1)

Oracle® Data Guard, Concepts and Administration, 12c Release 1 (12.1)

Chapter 5: Far Sync

New Options for Cascaded Standby Databases  级联备用数据库的新选项

It is now possible to cascade a Standby Database in Real-Time, ie. the first Standby Database can send Redo from the Standby RedoLogs to the cascaded Standby Database. The Data Guard Broker now supports Cascaded Standby Databases, too.

现在可以实时级联备用数据库。第一个备用数据库可以将重做从备用重做日志发送到级联的备用数据库。Data Guard Broker现在也支持级联备用数据库。

Note 1542969.1: Cascaded Standby Databases in Oracle 12c

Automated Rolling Upgrades using DBMS_ROLLING-Package  使用 DBMS_ROLLING-Package 的自动滚动升级

Parts of a Rolling Upgrade can now be automated using a new Package called ‘DBMS_ROLLING’.  现在，可以使用名为“ DBMS_ROLLING”的新程序包来自动进行部分滚动升级

The Data Guard Broker support Rolling Upgrades, too.  Data Guard Broker也支持滚动升级

Oracle® Data Guard, Concepts and Administration, 12c Release 1 (12.1)

Chapter 14: Using DBMS_ROLLING to Perform a Rolling Upgrade

SYSDG Administration Privilege  SYSDG管理特权

It is possible to grant the SYSDG-Privilege to a User in order to perform Data Guard-related Operations. The full SYSDBA-Privilege is not required any more to manage a Data Guard Environment, but can still be used, of course.

可以向用户授予SYSDG特权，以便执行与Data Guard相关的操作。管理Data Guard环境不再需要完整的SYSDBA-Privilege，但是仍然可以使用它

Note 1543327.1: Data Guard Security Enhancement – SYSDG Administration Privilege

Online Movement of Online Datafiles  在线数据文件的在线移动

You can now move Online Datafile without haveg to stop Managed Recovery and manually copy and rename Files. This can even be used to move Datafiles from or to ASM

现在，您可以移动Online Datafile而不用停止停止Managed Recovery并手动复制和重命名Files。这甚至可以用于将数据文件从ASM移入或移到ASM

Note 1543367.1: Moving a Datafile to a different Location on a Physical Standby Database

Multitenant Database Support  多租户数据库支持

Data Guard supports Physical Standby Database for a Multitenant Database  Data Guard支持多租户数据库的物理备用数据库

Creating a Physical Standby from Primary on Version 12c (Doc ID 1570958.1)