ORA-27086 unable to lock file - already in use 案例
表象
静默式安装oracle11g数据库并创建实例，database安装在raw上，启动数据库时，alert日志给出如下信息：
kcidr_process_controlfile_error:
IO Check was called but no error was found
ORA-00227: corrupt block detected in control file: (block 1, # blocks 1)
ORA-00202: control file: '/dev/raw/raw34'
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/dev/raw/raw33'
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable
Additional information: 8
Additional information: 29924
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/dev/raw/raw32'
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable
Additional information: 8
Additional information: 29924
kcidr_process_controlfile_error:
IO Check was called but no error was found
ORA-00227: corrupt block detected in control file: (block 1, # blocks 1)
ORA-00202: control file: '/dev/raw/raw34'
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/dev/raw/raw33'
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable
Additional information: 8
Additional information: 29924
ORA-00210: cannot open the specified control file
ORA-00202: control file: '/dev/raw/raw32'
ORA-27086: unable to lock file - already in use
Linux-x86_64 Error: 11: Resource temporarily unavailable
Additional information: 8
Additional information: 29924
原因
oracle@mmsg:~> oerr ora 27086
27086, 00000, "unable to lock file - already in use"
// *Cause: the file is locked by another process, indicating that it is
// currently in use by a database instance.
// *Action: determine which database instance legitimately owns this file.
解决方法
修改静默安装数据库使用的raw文件名称与map关系，避免这些raw占用现有环境上的其他raw文件。
