ORA-27101: shared memory realm does notexist
Linux-x86_64 Error: 2: No such file ordirectory
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RMAN>
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尝试去sqlplus模式下启动
SQL> startup
ORACLE instance started.
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Total System Global Area 5010685952 bytes
Fixed Size 2212936 bytes
Variable Size 2751466424 bytes
Database Buffers 2214592512 bytes
Redo Buffers 42414080 bytes
Database mounted.
ORA-03113: end-of-file on communicationchannel
Process ID: 10504
Session ID: 191 Serial number: 3
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SQL>
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这里打不开的原因是，参数文件恢复失效后，跳过参数文件恢复这一步骤，然后进行控制文件恢复后restore库recover库引发的问题。解决方案：就是重新恢复参数文件后再进行下述步骤就完全OK。