如果你有两块硬盘，并且主板的南桥芯片支持RAID功能，或者主板集成了第三方的RAID控制芯片，那么就可以组建RAID系统了。


　　一、支持RAID功能的芯片

　　目前支持RAID功能的南桥芯片主要有Intel的ICH5R(常见于一些高端的i865PE、i875P主板上)、ICH6R和ICH6RW(用于i915和i925系列主板)，以及VIA的VT8237。这些芯片均支持SATA RAID功能，即利用两块SATA硬盘来组建RAID 0或RAID 1系统，而且它们的设置方法也大致相同。

　　除了上述支持RAID功能的南桥芯片之外，Silicon Image公司的Sil3114、Sil3112，SiS公司的SiS180等芯片也支持SATA RAID功能。而VIA公司的VT6410芯片，ITE公司的IT8212F芯片则支持IDE RAID功能，即可以将两块PATA硬盘组成RAID系统。

　　注意:在构建RAID系统时，最好购买同容量、同品牌的同型号硬盘，这样可以最大程度地保护投资，避免资源浪费。

　　下面，我们就以Intel的ICH5R芯片为例，讲解如何利用两块硬盘来组建RAID 0或RAID 1系统。

　　二、在BIOS中打开RAID功能

　　 安装好SATA硬盘之后，就要进入BIOS中打开南桥芯片的RAID功能。具体方法是:进入BIOS设置程序的“OnChip IDE Device”窗口，找到一个名为“SATA Mode”的选项，将它设置为“RAID”，然后保存BIOS设置并重新启动电脑。

三、组建RAID系统


　　在BIOS中启动了RAID功能后，ICH5R南桥芯片内置的“Intel RAID Option ROM”便开始启动，该软件是Intel RAID应用程序，提供BIOS和DOS服务。在系统启动POST(加电自检)时，屏幕上会有一些提示信息，按“Ctrl+I”键便可进入Intel RAID Configuration Utility窗口.在该窗口中，窗口上半部分是主菜单，下半部分显示的是已经安装好的两个硬盘的信息，例如硬盘型号、容量、是否已经组建RAID系统等。

将光标移动到主菜单的“1.Create RAID Volume”上，然后按回车键，此时便进入创建RAID系统的主界面,首先将光标移动到“Name”选项上，在此输入一个RAID卷的名称，一般用默认的名称即可;按“TAB”键，将光标停留在“RAID Level”选项上，在此按向上或向下的箭头按键，可以选择RAID的类型──RAID 0或者RAID 1;根据自己的实际需要选择RAID类型(如果要提高磁盘性能，则选择RAID 0;如果要更好的安全性，则选择RAID 1)后，按“TAB”键将光标移动到“Strip Size”选项上，选择串列值，一般选择“128KB”。完成上述设置后，按“TAB”键，使光标停留在“Create Volume”上.按下回车键，此时会出现一条提示信息，询问是否确认创建RAID系统.

　　小提示:

　　注意，如果是创建RAID 0这种类型的RAID系统，必须在创建前备份硬盘上的数据，否则一旦创建RAID 0系统，则硬盘上的所有数据及分区都会被删除。

　　按“Y”键确认创建RAID，此时会回到主界面，在窗口的下方会发现硬盘的信息已经发生改变，显示已经创建了一个RAID卷

　　按“Esc”键，此时会出现确认是否退出的提示信息，按“Y”键退出RAID配置程序，此时系统重新启动。
四、硬盘分区及安装系统


　　如果创建的RAID系统是RAID 1，那么系统会自动将主盘上的数据备份到从盘上，此时如果主盘上已经安装了操作系统，则可以直接进入Windows，只要在进入Windows后安装Intel的ICH5R RAID驱动程序即可。

　　如果创建的是RAID 0，那么两块硬盘上的数据会全部被删除，此时要在DOS下对硬盘重新进行分区。分区的方法与常规的硬盘分区没有什么区别。分区完成后，在安装操作系统时，如果是安装Windows 2000/XP等NT核心的系统，则必须在出现“Press F6 if you need to install a third party SCSI or RAID driver……”这样一段提示语的时候按“F6”键，然后插入ICH5R的RAID驱动程序软盘，按“S”键装载该驱动。具体的操作方法与其他SATA控制芯片在安装Windows2000/XP时加载SATA控制器驱动时一样。

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