Working with large lists in MOSS 2007（MS白皮书）——文摘

• 单个的列表最多保留2000项（包括[文件项]和[目录项]）。但如果列表中有目录项，则列表所有项可以不止2000项。
  For example, that means that you could have a list with 1,990 items in the root of the site, 10 folders that each contain 2,000 items, and so on.
  

• 列表里可以包含最多5百万个[目录项]
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