We said:
Is this an IDE thing, is it better with SATA, or is Scussi the only
way ?
From what i read the SCUSSI interface using its own controler is this
alot better than IDE, or SATA ?
Thanks.
1. If the source file and the target file are on the same HD you
will get a lot of contention and a lot of seeks, regardless of
the type of bus or quality of bus adapter.
2. Large files are not copied in one piece, but in hunks. So:
a. Seek to and read source file metadata
b. Seek to and read source file data hunk
c. Create and seek to and write target file metadata
d. Seek to and write target file data hunk
e. If not done, go back to a.
Of course, it is not quite that bad for several reasons: caches
for metadata and read-ahead caching and write-behind caching help
a lot.
Copying files under WinWhatever, using Explorer drag'n'drop, is not
much better that using COPY under DOS. M$ could do better, but there
is not much incentive for them to optimize file copying for speed,
particularly since most desktop/laptop PCs only have one HD.