Oracle11g建立Data Guard和10g有一點點不同，這篇我將告訴大家需注意的小地方。
11g建立過程大多和10g相同,利用rman duplicate快速建立physics standby是最佳選擇，最大差異就是rman command(詳細過程可參考前天分享的10g rman duplicate)

連線至auxiliary database

執行 rman command(差異部分小弟用粗體顯示)

RUN {
allocate channel c1 type disk;
ALLOCATE AUXILIARY CHANNEL ax1 DEVICE TYPE DISK;ALLOCATE AUXILIARY CHANNEL ax2 DEVICE TYPE DISK;ALLOCATE AUXILIARY CHANNEL ax3 DEVICE TYPE DISK;ALLOCATE AUXILIARY CHANNEL ax4 DEVICE TYPE DISK;
duplicate target database for standby from active database dorecover;}



建立完成後測試同步功能

開啟standby db redo apply

Check current sequence

alter system switch logfile;

switchlog後primary和standby同步成功。

下篇小弟將實測physics standby db open readonly狀態下可否open redo apply services