strings $ORACLE_BASE/oradata/$ORACLE_SID/control01.ctl
alter database backup controlfile to trace as '<filepath&name>'
alter system set events 'immediate trace name controlf level 10'
alter database backup controlfile to '<fpath&name>'
alter database backup controlfile to trace as '<fpath&name>'
rman target /
>backup current controlfile; or
>backup database include current controlfile;
>configure controlfile autobackup on
>create controlfile reuse database <sid> noarchivelog noresetlogs datafile <'datafiles'> logfile <group X 'logfiles' size Y>
>alter database recover database using backup controlfile until change;
>show parameter <keyword>
>startup pfile='$ORACLE_HOME/dbs/init$ORACLE_SID.ora'; >create spfile from pfile;
>show parameter spfile;
>select distinct ISSPECIFIED from v$spparameter;
orcl.__db_cache_size=889192448 orcl.__java_pool_size=16777216 orcl.__large_pool_size=16777216 orcl.__shared_pool_size=285212672 orcl.__streams_pool_size=0 *.audit_file_dest='/u01/oracle/admin/orcl/adump' ---> 警告日志 *.background_dump_dest='/u01/oracle/admin/orcl/bdump' ---> 后台进程日志 *.compatible='10.2.0.1.0' ---> 版本向后兼容号 *.control_files='/u01/oracle/oradata/orcl/control01.ctl','/u01/oracle/oradata/orcl/control02.ctl','/u01/oracle/oradata/orcl/control03.ctl' --->控制文件 *.core_dump_dest='/u01/oracle/admin/orcl/cdump' ---> 服务器进程日志 *.db_block_size=8192 --->oracle内存块大小 *.db_domain='' --->域名 *.db_file_multiblock_read_count=16 --->单词IO可以读取多少块 *.db_name='orcl' --->和db_domain构成globename *.db_recovery_file_dest='/u01/oracle/flash_recovery_area' --->备份日志,OMF的管理文件存放路径 *.db_recovery_file_dest_size=2147483648 --->flash_recovery_area目录大小 *.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)' --->共享服务器的参数 *.job_queue_processes=10 --->当前作业进程数 *.local_listener='LISTENER_ORCL' --->本地监听服务 *.open_cursors=300 --->打开游标个数 *.pga_aggregate_target=407896064 --->pga大小 *.processes=150 --->当前可以运行多少进程 *.remote_login_passwordfile='EXCLUSIVE' --->远程登录是否需要密码文件,none|shared|exclusive *.sga_target=1223688192 --->sga大小(10g) *.undo_management='AUTO' --->undo表空间的管理方式 *.undo_tablespace='UNDOTBS1' --->ndo表空间 *.user_dump_dest='/u01/oracle/admin/orcl/udump' --->用户进程日志
select ksppinm,ksppstvl from x$ksppi a,x$ksppcv b where a.indx=b.indx
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