Phillip
Whilst I have no experience of using J K Defrag ( it may be an excellent
tool ) some of the claims voiced by others ( not Terry R ) are not true.
Quotes from the J K Defrag site follow:
"All fragmented files are defragmented, simply by moving them to the first
gap on the disk that is big enough. If there is no gap big enough then the
defragmenter will reduce the number of fragments in the file by moving as
much of the file as possible into the largest gaps available."
"How much minimum free disk space does JkDefrag require?
JkDefrag does not require a minimum free disk space, unlike many other
defragmenters. But:
Windows reserves some space for expansion of the MFT, default is 12.5% of
the volume size. This space is counted by Windows as free space because it
can/will be used for regular files when the rest of the volume is full.
JkDefrag cannot move files into this space, only out of ("reclaim MFT
reserved space").
A file can only be defragmented if there is a gap on disk big enough to hold
the entire file. There may be plenty of free space, but what is needed is a
single big gap. In these cases JkDefrag will try to reduce the number of
fragments in the file by using the biggest gaps available."
Sources:
http://www.kessels.com/Jkdefrag/
--
Hope this helps.
Gerry
~~~~
FCA
Stourport, England
Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~
"Ant" wrote in message
...
On 3/9/2009 9:56 PM PT, Terry R. typed:
Someone is being very paranoid. There isn't anything wrong with your
cluster sizes. Most likely you have much less wasted space with 512
clusters, and you may have more fragmentation. So what. Use PM8 if you
have it. You can see what the difference in wasted space is by seeing
what you gain/lose by changing the cluster size. PM8 can change your
cluster size if you want it, but like you stated, create a backup first.
I have 3 hard drives with multiple partitions. OS, data, and program
drives are all 512kb cluster sizes. No issues. If you have large files
(video, etc), then use a larger size. But don't freak out because you
don't have 4k clusters. That's fretting over nothing.
OK, so no performance improvements I assume.
--
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burrows." --unknown
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