Might be more than it is worth but what if you made a small program/file server
that addressed portions of the "larger" file as their own file in a temporary
directory. On write you would have to preallocate the file on the disk and
write eatch section to it's respective range. "Chunks" would be simplified by
having a pre-copy size and a "Chunk number" appended on the end of each chunk.
Used to write to the correct location in the destination. Everything in else
could remain the same. You would just use the "Split/Bulk Copy" program to copy
from source to destination. Getting better with plan9 but not enough so to
implement something like this or know if it would work. Just a thought.
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