有段文档看不太懂，那位给讲讲看

haijiang

Procedure to erase a hard disk\r\nIf you need to process hard disks with sensitive data, you can use a new option\r\nthat allows the data to be erased.\r\nFrom within the maintenance menu and also together with the BOS installation,\r\nyou have the choice to overwrite hard disks with selectable binary patterns. If you\r\nwant your disks erased at installation time, the process erases your hard disks\r\nand continues installation afterwards. Otherwise, the erasure process reaches\r\n100 percent completion and stops.\r\nThe same erase function is available using the diag command. There is more\r\nabout the diag command in “The diag command” on page 384.\r\n\r\n看不太明白，这段文档的用意，那位给讲讲\r\n\r\n说是要抹掉一块带敏感数据的硬盘，又说全部抹掉，搞不太懂

wtjiang2008

应该是说的AIX中擦除硬盘数据的功能吧！可以把硬盘原有数据擦除然后用新数据覆盖以防止敏感数据外泄！\r\n可以在maintenance模式和BOS引导时选择擦除并且要选择binary patterns选项。如果在BOS引导时执行这个操作，执行完之后系统将继续引导，否则操作100%完成后停止。\r\n这个操作也可以使用diag命令完成！\r\n\r\n不知道理解的是不是正确，只是听别人说过，自己没做过！