SPExportSettings.FileMaxSize - limitations

MSDN describes that FileMaxSize allows to set 2GB.

But it looks like that it works with range from 1 to 1023 only, at least it tries to work :)

For any values >= 1024 the export uses default cmp size = 24MB

Also is interesting that stsadm has 1024 as a maximum cabsize value.

FileMaxSize works, at least I can get 10MB package. But the export fails on my lab with FileMaxSize > 100: "FatalError: Export ran out of memory while compressing a very large file. To successfully export, turn compression off by specifying the -nofilecompression parameter."

I have tried to export 6GB site and export works only with FileMaxSize <= 100. I think "100" can depend from real site data size.

There is interesting point that error can be raised due the manifest.xml size. I think that true is somewhere near, because compression works with default size. Probably the compression can not split some long description of object from manifest.xml between several files.

Looks like a bug.