本文未涵盖一般意义上的如何建模错误和补偿处理。
This article does not cover how to model fault and compensation handling in general.
如果最大的空闲区段无法涵盖两个或更多分区区段，碎片整理程序会设置错误代码并返回。
If the largest free extent cannot cover two or more partition extents, the defragmenter sets an error code and returns.
很难处理所有的错误条件，但是这一小小的改变能够涵盖典型Web应用程序中80%的问题。
This is hardly going to handle every error condition, but it's a simple change that covers 80 percent of the problems that can occur in a typical Web application.
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