Data Guard与RAC不同的是,在一般情况下,Standby只有一个节点处于活动状态,所有的应用都连接到主服务器。只有当服务器发生故障时,才考虑切换到备用服务器。在Oracle 11g以前版本中的的Data Guard物理备用数据库,可以以只读的方式打开数据库,但此时MediaRecovery利用日志进行数据同步的过程就停止了,如果物理备用数据...【阅读全文】
1.清理CRS。来自metalinkDoc ID: 239998.1PURPOSE-------The purpose of this document is to help DBA's and support analysts understand howto clean up a failed CRS (Cluster Ready Services) install for 10g RAC.SCOPE & APPLICATION-------------------DBA's and Support Analysts10g RAC: How to Clean Up After...【阅读全文】
看到有人问如何区分RAC 创建后是Admin managed 还是Policy managed 。首先要看定义: Administrator-managed: Database administrators define the servers on which databases resource run, and place resources manually as needed. This is the management strategy used in previous releases.Policy manag...【阅读全文】