数据库版本10.2.0.4 windows2008r2

最近频繁宕机，事发时间都是下班以后，凌晨，该时间段也没有备份或是其他定时任务。保存如下

The controlfile header block returned by the OS

has a sequence number that is too old.

The controlfile might be corrupted.

PLEASE DO NOT ATTEMPT TO START UP THE INSTANCE

without following the steps below.

RE-STARTING THE INSTANCE CAN CAUSE SERIOUS DAMAGE

TO THE DATABASE, if the controlfile is truly corrupted.

In order to re-start the instance safely,

please do the following:

(1) Save all copies of the controlfile for later

analysis and contact your OS vendor and Oracle support.

(2) Mount the instance and issue:

ALTER DATABASE BACKUP CONTROLFILE TO TRACE;

(3) Unmount the instance.

(4) Use the script in the trace file to

RE-CREATE THE CONTROLFILE and open the database.

网上看了很多说是io问题，官方文档也看了，也是这么说的，隐藏参数没敢改，今天去现场检查下存储看看，

不知到还有没有别的处理思路。