[plug] splitting very large files

[Michael Holland]

Is there any way to split large files (many GB) on disk (ext3) without
copying?
Or any hooks in the OS/filesystem that could be use to do it?
Is it possible without unmounting the FS and raw access to the partition?

The only thing I know about is the truncate(2) call, which I've written a
trivial perl wrapper for. That splits off the head part very quickly, but
I'm still copying the tail first.

cheers.

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