On 2009-08-03, Alan McKinnon <alan.mckin...@gmail.com> wrote:
> On Monday 03 August 2009 23:05:02 Paul Hartman wrote:
>
>> The time-honored way of fixing this is "backup, delete,
>> restore". In my case my simple defragmenter is to move a file
>> to tmpfs and then move it back to the hard drive. I always do
>> this to files I'm about to burn to a CD/DVD to ensure the read
>> speed is optimal.
>
> Until one day someone write a super-duper disk cache algorithm
> that delays writes safely, notices that you are putting back
> unmodified something you just deleted, then reverts "to be
> deleted" flag on the block pointers. meaning that nothing has
> changed.
>
> Lucky for us, I do not believe that such a driver has been
> written yet. Unlucky for us, I believe that such a driver is
> entirely possible.

And actually quite simple once the
content-addressable-disk-drive is invented.

-- 
Grant Edwards                   grante             Yow! Didn't I buy a 1951
                                  at               Packard from you last March
                               visi.com            in Cairo?


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