[muglo] Re: permission to defrag?

Not sure if this post is true, but it was not refuted:

>Another way to do this is to create a backup using Disk Utility or SuperDuper!
>or (insert many utilities here) to backup to an external drive, and then
>restore.
>It does a good job of consolidating data, etc.

>Also, the Mac OS defrag's on the fly files 20MB and under.

http://discussions.apple.com/thread.jspa?messageID=4670125&#4670125

Or, read this:

http://www.macfixit.com/article.php?story=20070301091515843

or this:

http://docs.info.apple.com/article.html?artnum=25668

Fragmentation was often caused by continually appending data to existing files,
especially with resource forks. With faster hard drives and better caching, as
well as the new application packaging format, many applications simply rewrite
the entire file each time. Mac OS X 10.3 Panther can also automatically
defragment such slow-growing files. This process is sometimes known as
"Hot-File-Adaptive-Clustering."

(above paragraph is from the Apple doc)


Quoting Gerhard Kuhn <gerhardk@xxxxxxx>:

> I tend to agree permissions and defrag are different issues.  When I
> was using a PC I use to defrag once a month but can't actually say
> that I remember a significant performance boost but that may be
> because I did it regularly and had lots of disk space.  The defrag
> was a job that would take hours I would schedule it as a overnight
> routine.  From what I understand OS X is suppose to do this type of
> maintenance on it's own when left on overnight but I really don't
> know for sure.  The speed of reading files may increase slightly by
> having a defragged drive but I doubt it makes a real life difference
> todays hardware is just exceptionally fast.
> Gerhard
>
>
> On Jul 27, 2007, at 5:28 PM, Doug Bale wrote:
>
> > You've stumped me, Tee. How does "Repair permissions" reassemble
> > discontiguous bits of a scattered file and reposition it on the disk
> > with like files, as a defragger does? I thought it was just about
> > defining or redefining authorizations to access those files. Have I
> > missed something? Wouldn't be the first time.
> >
>
>
>
> -----------------------------------------------------------
>    For information about MUGLO: http://www.freewebs.com/muglo
> -----------------------------------------------------------
>



-----------------------------------------------------------
   For information about MUGLO: http://www.freewebs.com/muglo
-----------------------------------------------------------

Other related posts: