Disk boot failure.

磁盘引导失败。

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If you're trying to determine why a server won't boot after a disk failure, the first thing I often do is to un-map or disconnect all disks from the server except for the root volume group.

如果想要判断一个服务器为何在磁盘故障后不能引导，我通常会做的第一件事情是从服务器(根卷组除外)，断开所有磁盘的映射和连接。

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The data recovery of hard disk software failure can be solved by the following ways, the recovery of main boot partition, partition table, DBR, zero track and the file deleted by mistakes.

硬盘软故障的数据恢复主要可以从以下几个方面入手：主引导区恢复、分区表恢复、DBR修复零磁道损坏的修复以及文件误删除的数据恢复。

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