客户的11.2 RAC数据库在备份是出现ORA-245错误。
从告警日志中可以看到错误信息为：
Errors IN file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_ora_18335.trc: ORA-00245: control file backup operation failed |
详细TRACE信息为：
Trace file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_ora_18335.trc Oracle DATABASE 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production WITH the Partitioning, REAL Application Clusters, Automatic Storage Management, OLAP, DATA Mining AND REAL Application Testing options ORACLE_HOME = /u01/app/oracle/product/11.2.0 System name: Linux Node name: node-1 Release: 2.6.18-274.el5 Version: #1 SMP Fri Jul 8 17:36:59 EDT 2011 Machine: x86_64 Instance name: orcl1 Redo thread mounted BY this instance: 1 Oracle process NUMBER: 157 Unix process pid: 18335, image: oracle@node-1 (TNS V1-V3) *** 2012-03-30 00:01:45.301 *** SESSION ID:(633.29287) 2012-03-30 00:01:45.301 *** CLIENT ID:() 2012-03-30 00:01:45.301 *** SERVICE NAME:(SYS$USERS) 2012-03-30 00:01:45.301 *** MODULE NAME:(rman@node-1 (TNS V1-V3)) 2012-03-30 00:01:45.301 *** ACTION NAME:(0000012 STARTED114) 2012-03-30 00:01:45.301 ORA-00245: control file backup operation failed |
查询MOS发现是Oracle 11.2上Oracle改变了控制文件镜像的访问方式。11.2之前，RAC的各个节点上的ORACLE_HOME/dbs目录分别保存镜像。而11.2之后，Oracle要求这个镜像控制文件在两个节点上都可以访问到，因此可以通过设置控制文件镜像到共享磁盘的方式解决这个问题，语法类似：
RMAN> CONFIGURE SNAPSHOT CONTROLFILE NAME TO ‘+DATA/orcl/snapcf_orcl.f’; |