如何从裸设备备份oracle控制文件？

anton

如何从裸设备备份oracle控制文件？

sshd

SQL>; alter database backup control file to trace;
find the trace file under user dump dest
or
SQL>; alter database backup control file to '/dirname/filename';
or
RAMN>; BACKUP CURRENT CONTROLFILE to '/dirname/filename';

remen

老大，人家是裸设备呀！

sshd

if you use the operating system method to backup the control file when the instance is shutdown, you will have to use "dd" for raw devices.

the suggested methods do not use OS methods, nd will work.