过程：
alter system switch logfile;
alter database backup controlfile to trace;
shutdown immediate;
拷贝相关文件到移动硬盘，参数口令控制数据和日志文件，监听文件不拷贝
cd /oracle/app/ora11g2/product/11.2.0/dbhome_1/dbs
cp /mnt/jimmydb/dbs/initjimmydb.ora initjimmydb.ora
cp /mnt/jimmydb/dbs/orapwjimmydb orapwjimmydb
cp /mnt/jimmydb/dbs/spfilejimmydb.ora spfilejimmydb.ora
cd $ORACLE_BASE/oradata
cp -r /mnt/jimmydb/oradata/jimmydb jimmydb
配jimmdb的监听
startup mount
ORA-09925: Unable to create audit trail file su - ora11g2 cd $ORACLE_BASE cd diag cd /rdbms/jimmydb/jimmydb/trace
查看alert文件 more altert* 找到原因：Could not open audit file: /oracle/app/ora11g2/admin/jimmydb/adump/jimmydb_ora_4064_2.aud cd /oracle/app/ora11g2/admin/
mkdir jimmydb
cd jimmydb
mkdir adump
mkdir dpdump
mkdir pfile
cd /oracle/app/ora11g2/diag/rdbms/
mkdir jimmydb
复制相关文件：
cd /oracle/app/ora11g2/admin/
cp -r /mnt/jimmydb/admin/jimmydb jimmydb
cd /oracle/app/ora11g2/diag/rdbms/
cp -r /mnt/jimmydb/rdbms/jimmydb jimmydb
alter databae open--出现在线日志损坏提醒，可能与移动硬盘拷贝有关
select group#,ARCHIVED,status from v$log;
alter database clear unarchived logfile group 1
alter database open;
alter system switch logfile;
select group#,ARCHIVED,status from v$log;