RAC数据库是相对比较复杂的。
建议朋友先经过较资深的oracle数据库专家指点,在进行实际操作。
the raw device is deprecated by ORACLE company now.
But you could find somewhere some customer is still use raw devices now , although. And you can use raw device for experiment also.
As I know, the path of raw device is defined by user. So you maybe wanna DBA or SA to help you .
/dev/rdsk/
/devices/pseudo