[Oracle][Data Guard]Oracle11g Active Data Guard#2Check redo apply
這篇來測試11g data guard最大的改變,這也是小弟最期待已久的功能。
取消redo apply process
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
如還有session請先結束所有session
alter database recover managed standby database finish;
open physics standby db read only
alter database open read only;
在physocs standby 開啟狀態下,嘗試Open redo apply
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
成功開啟redo apply後測試是否同步
Insert data(65225)--先塞資料
Alter system switch logfile;--手動交換logfile seq
開啟狀態下查看apply狀況
SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME,t.APPLIED FROM V$ARCHIVED_LOG t ORDER BY SEQUENCE#;
運作正常;physics db可以在open read only mode下順便redo apply 大大提高physics db可用性。
下篇小弟將測試Physics standby convert to Snapshot standby。