如何在xp下使用>137G的硬盘（中英文对照,hhstar翻译）

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如何在xp下使用>137G的硬盘（中英文对照,hhstar翻译）



原文是http://support.microsoft.com/def ... &NoWebContent=1

这里摘录一段：

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MORE INFORMATION

Windows XP SP1 includes 48-bit LBA support for ATAPI disk drives. With this support, you can use hard disks that are larger than the current 137 GB limit. By default, support is enabled in SP1. To determine if you are running SP1, right-click My Computer and then click Properties. On the General tab, Service Pack 1 will be listed under System.



To determine if you have the latest ATAPI driver, verify that the version of Atapi.sys in your %systemroot%\system32\drivers folder is version 5.1.2600.1135 (or version 5.1.2600.1152 for Windows XP 64-Bit Edition) or later. To do this, follow these steps:

Click Start, and then click Search (or point to Search and then click For Files and Folders).

Type Atapi.sys, and then click Search.

If the Atapi.sys file in your %systemroot%\system32\drivers folder is not found, change your preferences for the Search Companion to search system and hidden folders and then repeat step 2. For additional information about how to search for hidden and system folders, click the following article number to view the article in the Microsoft Knowledge Base:

302347 HOW TO: Search For Hidden Or System Files In Windows XP



In your %systemroot%\System32\Drivers folder, Right-click Atapi.sys, and then click Properties.

On the Version tab, note the file version.

If Atapi.sys is not version 5.1.2600.1135 (or version 5.1.2600.1152 for Windows XP 64-Bit Edition), obtain and install the hotfix described in Microsoft Knowledge Base article 331958. For additional information about this hotfix, click the following article number to view the article in the Microsoft Knowledge Base:

331958 Hard Disk May Become Corrupted When Entering Standby or Hibernation or When Writing a Memory Dump



By default, the original release of Windows XP Home Edition and Windows XP Professional do not have 48-bit LBA support enabled.



You must meet the following requirements to use 48-bit LBA ATAPI support:

You must have a 48-bit LBA compatible BIOS.

You must have a hard disk that has a capacity that is greater than 137 GB.

You must have Windows XP SP1 installed.

For the original release of Windows XP Home Edition or Windows XP Professional, 48-bit LBA could be enabled for testing purposes by setting a registry value, named EnableBigLba, to 1 in the following registry key:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Atapi\Parameters\



Warning Data corruption can occur you use this registry value to enable 48-bit LBA support in the original release of Windows XP Home Edition or Windows XP Professional, or if previous versions of Windows that do not support 48-bit LBA out of the box (for example, Windows 2000 or earlier) are installed on a disk partition that was previously created by a 48-bit aware operating system such as Windows XP SP1 that is larger or spans the current addressable limit of 137 GB.



Note: The preceding registry setting is ignored in Windows XP SP1 and later. If you attempt to enable the 48-bit LBA ATAPI support in the original release of Windows XP Home Edition or Windows XP Professional by editing the preceding registry setting and you did not meet the minimum requirements, you may observe the following behavior:

The registry value EnableBigLba is disabled. If you have a 48-bit compatible BIOS that can support a hard disk that has a capacity that is greater than 137 GB, only the first 137 GB of the hard disk are addressable. The rest of the hard disk is not used.

The registry value EnableBigLba is enabled, but you do not have a 48-bit LBA compatible BIOS and the capacity of the hard disk does not exceed 137 GB:



If you enable the 48-bit LBA ATAPI support by editing the registry setting, but you lack both a 48-bit LBA compatible BIOS and a hard disk that has a capacity that is greater than 137 GB, you have not changed the system. The hard disk continues to function as a standard hard disk.

The registry value EnableBigLba is enabled without a 48-bit LBA compatible BIOS, but you have a hard disk with a capacity that is larger than 137 GB.



If you enable 48-bit ATAPI support in the registry and you have a hard disk that has a capacity that is greater than 137 GB, but you do not have a 48-bit LBA compatible BIOS, only the first 137 GB of the hard disk are addressable. The remainder of the hard disk is not used.







XP包括了对48位LBA磁盘的支持（22位寻址容量极限为137G：65536×16×255×512/1024×1024＝ 131GB，按硬盘厂商的算法就是137GB），她可以让硬盘容量超过当前的 137 GB 限制。在默认情况下，只安装安装了  (SP1) 就会启用 48 位 LBA支持。这样做就确定你是否安装了SP1，右键我的电脑-属性-在常规选项卡中有相应的信息。

为了确信你安装了最新版的ATAPI驱动，检查Atapi.sys文件的版本号是5.1.2600.1135 或更新，这个文件在%systemroot%\system32\drivers中。具体步骤如下：

点击开始、查找、输入Atapi.sys，然后点击搜索按钮。如果没有在%systemroot%\system32\drivers找到，更改搜索条件为查找系统和隐藏文件然后重复查找过程。如果需要了解更多的关于如何查找系统和隐藏文件夹的信息，点击下面文章编号，查看微软知识库文章。

右键 Atapi.sys ，选择属性

在版本标签，注意文件版本号。



如果Atapi.sys的版本低于5.1.2600.1135 ，获得并且安装补丁，在微软知识库文章331958中有关于该补丁详细资料。

在默认情况下，XP Home和XP Professional 没有启用48位LBA支持。

必须满足下列要求才能使用48位LBA ATAPI支持：

必须具有48位LBA兼容的BIOS。（也就是BIOS必须要认大于137G的硬盘）

必须具有一个容量超过137GB 的硬盘。

必须安装了XP SP1



对于XP Home或 XP Professional，必须通过更改注册表值才能启用该支持，在下列注册表中将 EnableBigLba 更改为 1。

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Atapi\Parameters\



警告：如果尚未安装 Service Pack 1，就在XP中手动打开48位LBA支持，则可能丢失数据。如果磁盘分区中安装了不支持48位LBA的旧版本Windows（例如，Windows 2000 或更旧版本），而该分区以前是由可识别48位的操作系统（例如，Windows XP，它占用更多空间或超出当前 137GB 的可寻址限制）创建的，则可能出现破坏数据的情况。

（另请注意，如果尚未安装 Service Pack 1，就在&