before we start to PSU upgrade,we should backup database(cold or hot backup) and the oracle home dir
Oracle? Database 10g Release 2 (10.2.0) RAC for RedHat4 Oracle Rac 10.2.0.1升级至10.2.0.5 升级集群件-滚动升级
结论 1,测试环境是oracle 10.2.0.5 2,_kghdsidx_count=1，即共享池子池个数是1个 3,硬解析需要获取shared pool latch 4,软解析需要获取sha