Jan Hudec wrote:
>
> > I don't know if any filesystem currently relocates blocks if you
> > overwrite a file, but it's certainly possible and allowed (everything
> > else except the filesystem itself simply must not care where the data
> > actually ends up on the disk).
>
> AFAIK, ext2 tries to defragment files when possible.
We wish.
> Thus if the file was
> fragmented and the blocks after some fragment are free, it will use these
> instead of the original ones somewhere far apart.
Nope - if you're overwriting a part of the file which already has
allocated blocks, ext2/3 will use the same blocks.
Of course, the disk itself may decide to go and remap the block
if it decides that part of the media is getting tired.
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This archive was generated by hypermail 2b29 : Fri Feb 15 2002 - 21:00:50 EST