On 19-Dec-09, at 4:35 AM, Colin Raven wrote:
...
There is no original, there is no copy. There is one block with
reference counters.
Many blocks, potentially shared, make up a de-dup'd file. Not sure
why you write "one" here.
- Fred can rm his "file" (because clearly it isn't a file, it's a
filename and that's all)
- result: the reference count is decremented by one - the data
remains on disk.
OR
- Janet can rm her "filename"
- result: the reference count is decremented by one - the data
remains on disk
OR
-both can rm the filename the reference count is now decremented by
two - but there were only two so now it's really REALLY gone.
That explanation describes hard links.
--Toby
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