DG搭建三种方式: 一.异机恢复,restore database,recover database 二. duplicate target database for standby from active database; 三. duplicate target database for standby 区别: 对主库的影响: 异机恢复,使用主库传输过来的备份,手工搭建物理DG,影响最小,安全系数最高,三种方式对比操作复杂 --手动挡 duplicate from active data
oracle DG查看延时时间 SQL> select value from v$dataguard_stats where name='apply lag'; 例如: SQL> select value from v$dataguard_stats where name='apply lag'; VALUE----------------------------------------------------------------+00 00:00:00 由于是自己搭建的测试DG,没有延时
今天做Oracle DG 编写initorcl的时候,修改完以后,sqlplus就不能再登陆,一直报 ERROR: ORA-09925: Unable to createaudit trail file Linux Error: 2: No such file ordirectory Additional information:9925 ORA-01075: you are currentlylogged on 一直找不到原因,后来在网上偶然找到个帖子说了这样一个情况,试了下,果然有效 [o
###oracle dg 报错提示 涉及硬盘错误 Dec 23 03:28:01 xhisdg rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="4554" x-info="http://www.rsyslog.com"] rsyslogd was HUPed Dec 23 03:28:03 xhisdg rhsmd: In order for Su
oracle dg 状态检查 先检查备库的归档日志同步情况 SELECT NAME,applied FROM v$archived_log; alter database recover managed standby database cancel; select thread#,sequence#,standby_dest,archived,applied,status from v$archived_log order by 1,2; alter database recover mana
ORACLE DG在线日志添加日志成员 SQL>select SEQUENCE#,first_time,next_time,APPLIED, THREAD# from v$archived_log order by SEQUENCE#,THREAD#;#记录日志应用的位置SQL> select GROUP#,BYTES/1024/1024 from v$log;SQL> select GROUP#,BYTES/1024/1024,STATUS from v$standby_log; 主库
ORACLE DG在线日志修改 SQL>select SEQUENCE#,first_time,next_time,APPLIED, THREAD# from v$archived_log order by SEQUENCE#,THREAD#; select * from v$logfile order by GROUP# ; SQL> select GROUP#,BYTES/1024/1024 from v$log; SQL> select GROUP#,BYTES/1024/102