Encountered CRS-4124, the OHASD cannot be started, it shows as below: [bob@ocp ~]$ crsctl start has CRS-4124: 未能启动 Oracle High Availability Services。 CRS-4000: 命令 Start 失败, 或已完成但出现错误。 Cannot startup the instance: [bob@ocp ~]$ sqlplus / as sysasm SQL*Plus: Release 220.127.116.11.0 Production on 星期三 8月 28 13:56:52 2019 Copyright (c) 1982, 2009, Oracle.
使用非存档模式在RMAN下备份数据文件，遇到ORA-19602错误。错误如下： [tom@ocp ~]$ rman target / 恢复管理器: Release 18.104.22.168.0 - Production on 星期二 8月 20 14:01:47 2019 Copyright (c) 1982, 2009, Oracle and/or its affiliates.
Summary Configure the Shared mode for Oracle connection, it failed and returned ORA-12523, found out it is mandatory to configure local listener.
Encountered SQL developer- the network adapter could not establish the connection, it is quite simple, the Oracle listener was not start up.
Summary Encountered problem cannot login Oracle by login name and password "system/oracle", resolved this issue by changed the kernal parameter kernel.sem in sysctl.conf.
SQL Developer is the GUI software to connect Oracle DB, installed on AWS Ubuntu and tested the connection to RDS.
Created the Oracle EE on the AWS RDS, tried different methods to connect the created AWS RDS through internet.