12c Data Guard Far Sync-09 - 墨天轮文档

12c Data Guard Far Sync-09

许玉冲

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2019-09-23

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Author：Yuchong.Xu Email:vc.123@qq.com 测试文档，若有问题请及时沟通

12c Data Guard Far Sync-08

Failover To Alternate Destination Does Not Work With FAR SYNC (

文档

ID 1939927.1)

Con!guring Active Data Guard Far Sync Using a Terminal Standby

Database as Alternate Log Archive Destination in Data Guard Broker

(

文档

ID 1918316.1)

Alternate Log Archive Destination

1, Alternate Log Archive Destination to

standby db

当

cdb02

主机出现问题

自动切换至

cdb03

配置步骤

----

优化切换参数：

edit far_sync far01pdb set property maxfailure=1;

edit far_sync far01pdb set property nettimeout=8;

edit far_sync far01pdb set property reopensecs=5;

---

设置日志传输：

edit database pdb set property redoroutes='(LOCAL: far01pdb sync

alt=(sbpdb async fallback))';

edit database sbpdb set property redoroutes='(LOCAL:pdb async)';

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Author：Yuchong.Xu Email:vc.123@qq.com 测试文档，若有问题请及时沟通

12c Data Guard Far Sync-08

2, Far Sync Instance High Availability

当

cdb02

主机出现问题

自动切换至

cdb04,cdb04

为

far instance

。

配置步骤

添加

far02pdb:

add far_sync far02pdb AS CONNECT IDENTIFIER IS far02;

enable far_sync far02pdb;

修改日志传输策略：

edit far_sync far01pdb set property maxfailure=1;

edit far_sync far01pdb set property nettimeout=8;

edit far_sync far01pdb set property reopensecs=5;

edit database pdb set property redoroutes='(LOCAL : far01pdb SYNC

alt=(far02pdb sync fallback))';

edit database sbpdb set property redoroutes='(LOCAL : far01pdb SYNC

alt=(far02pdb sync fallback))';

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