sorry for asking such question... i know in HFS+ u dont have to do defrag. but anyone here use any 3rd party apps to do defrag and gain any improvement in performance?

well.. not for me
i just use Disk Utility it's good enough i suppose

same here. diskutil works fine for me.

I use Apple's built-in Disk Utility.

3rd party app, you can use iDefrag, http://www.versiontracker.com/dyn/moreinfo/macosx/25411

You can also try the Maintenance Automator script. http://www.apple.com/downloads/macosx/auto...aintenance.html

*chuckles*

Its called HFS+ Journaled (or something like that) , and it does not ger fragmented

You can repair permissions by simply going to Terminal and typing

sudo diskutil repairpermissions /

and It will do the rest for you. I've got few other scripts as well to clear kextcache and stuff like that

Oh one more thing , don't use iDefrag..It might 'mess' your Mac up. Never (from my past experience)

been using idegraf for 2 month now so far so good ... 30% faster in my macbook d2c, as foryou don't have to defrag take a look at this article i found in the net ...

Sensible arguments for occasional optimization of your disk include:

HFS+ is not very good at keeping free space contiguous, which can, in turn, lead to large files becoming very fragmented, and can also cause problems for the virtual memory subsystem on Mac OS X.

Older versions of the Mac OS are not themselves aware of the metadata zone policy, and may disrupt its performance.

HFS+ uses B-Tree index files to hold information about the filesystem. If a large number of files are placed on a disk, the filesystem may have to enlarge these B-Tree structures; however, there is no built-in mechanism to shrink them again once the files are deleted, so the space taken up by these files has been lost.

Whilst HFS+ is good at keeping individual files defragmented, mechanisms like Software Update may result in files that are components of the same piece of software being scattered across the disk, leading to increased start-up times, both for Mac OS X itself and for applications software. This is a form of fragmentation that is typically overlooked.

Defragmenting disk images can be helpful, particularly if they are to be placed onto a CD/DVD, as seeks on CD/DVD discs are particularly expensive.

Some specific usage patterns may cause fragmentation despite the features of HFS+ that are designed to avoid it.


and one more


nevrozel "Isn't DiskWarrior way better than this one, including defragmentation?"

Not even close. iDefrag allows you to customize HOW you want to defrag, and has multiple methods to do so.
Diskwarrior and Techtool Pro only scratch the surface with their defrag's.
And for those that asked.
Yes you do need a defrag tool , forget all the bullshit you've been told about not needing it.
Every file deleted can leave empty spots and when a new file is added, it's split up to fill those empty spots!
Sucks for high end video, audio, games and so on when files have been split up into smaller chunks.
Not to mention every OSX update I defrag and get atleast a 10% speed boost after.


------------ dont know how true that is but tried it myself so far so good

This post has been edited by deu5: Aug 27 2007, 11:16 PM

Oh, I remember maybe youu can use Onyx.

There just too much misinformation being served on this thread. You've got to differentiate disk defragmentation from the various maintainence routines that are required to keep OS X running smoothly.

As usual; other sites on the web have it spelt out far better than I can; so please surf on over to:

http://www.macattorney.com/ts.html

for a good overview of the various things you need to do to keep your mac in shape. Please give the paragraph on defragmentation a read too. I use iDefrag on about a monthly basis.

... and no; I do NOT think it will "mess up" my mac. I expect quite the reverse is true.