defragmentation

abhinay · abhinay #1 (**permalink**)

07-20-2009, 08:23 AM

hello,
i am developing an application which can provide the deframentation of harddrive in mac os x. then tell me is there any terminal command to do the same.

plz help me out

regards
abhinay chauhan
s/w engg

cwa107 · cwa107 #2 (**permalink**)

07-20-2009, 08:30 AM

I would spend your time on something more useful....

About disk optimization with Mac OS X

abhinay · abhinay #3 (**permalink**)

07-20-2009, 08:37 AM

hello,
i am developing an application which can provide the defragmentation feature for mac os x (just like window ) to speed up our system. which can defrag our fragmented files and arrange all the free space at the end of the partition.
tell me how can i do so?
tell me is there any terminal command to do the same?

please help me out .............

regards
Abhinay chauhan
s/w engg

cwa107 · cwa107 #4 (**permalink**)

07-20-2009, 09:23 AM

NOTE: Merged duplicate threads. Please do not cross-post.

rman · rman #5 (**permalink**)

07-20-2009, 05:09 PM

Quote:

Originally Posted by abhinay

hello,
i am developing an application which can provide the defragmentation feature for mac os x (just like window ) to speed up our system. which can defrag our fragmented files and arrange all the free space at the end of the partition.
tell me how can i do so?
tell me is there any terminal command to do the same?

please help me out .............

regards
Abhinay chauhan
s/w engg

Read up on journal file systems

abhinay · abhinay #6 (**permalink**)

07-21-2009, 12:16 AM

hello,
sory, i didn't get ur ans . tell me how can i defragment our hard disk partion and my query is----

i am developing an application which can provide the defragmentation feature for mac os x (just like window ) to speed up our system. which can defrag our fragmented files and arrange all the free space at the end of the partition.
tell me how can i do so?
tell me is there any terminal command to do the same?

please help me out .............

ADKhikerVW · ADKhikerVW #7 (**permalink**)

07-21-2009, 12:25 AM

You don't need to defragment your hard disk with Mac OS X. The file system handles this automatically.

abhinay · abhinay #8 (**permalink**)

07-21-2009, 01:34 AM

file system only defrag the file which is under 20 MB size.
but i want to defrag the files above then this size.
if file system hands it then tell me which exec the file system run to do the same .

and tell me the path , how can i defrag our hard disk in mac os x?????????

thanks
abhinay chauhan

bobtomay · bobtomay #9 (**permalink**)

07-21-2009, 07:50 AM

One more time - you don't need to - OS X handles this quite well on it's own.

Just checked my system last night, been running it for almost 2 years now without defragging or a fresh install. It was 0.6% fragmented. And I install, remove and modify tons of files on an ongoing basis.

Unless you're hitting the point of less than 25% free space, a defrag is typically not going to help with OS X. If you are hitting that percentage, I suggest freeing up some space. If you're insistent that you want to defrag, you can grab the app iDefrag.

JohnCL · JohnCL #10 (**permalink**)

07-21-2009, 08:18 AM

Quote:

Originally Posted by bobtomay

One more time - you don't need to - OS X handles this quite well on it's own.

Just checked my system last night, been running it for almost 2 years now without defragging or a fresh install. It was 0.6% fragmented. And I install, remove and modify tons of files on an ongoing basis.

Unless you're hitting the point of less than 25% free space, a defrag is typically not going to help with OS X. If you are hitting that percentage, I suggest freeing up some space. If you're insistent that you want to defrag, you can grab the app iDefrag.

Where are you finding the information on fragmentation?

bobtomay · bobtomay #11 (**permalink**)

07-21-2009, 11:31 AM

Assume you're referring to my current fragmented percentage. I downloaded the iDefrag demo.

With the amount of data in and out on my personal machines, Windows was always hitting 20% fragmented in about a month of regular use although I had it set up to auto defrag once a week when it was already hitting 10% or better. After 2 1/2 yrs with OS X, I still have this habit of checking to see if I need to defrag or not once every 3-4 months, and so far the percentages have been so insignificant as to not make the purchase of iDefrag even remotely advantageous to me. If you're running a nearly full drive it could be different for you.

cwa107 #2 (permalink)
Member Since: Dec 20, 2006 Location: Middletown, Pennsylvania Posts: 25,917 Mac Specs: 15" MBP, Core i7/2GHz, 8GB RAM, 256GB Crucial M4 SSD	07-20-2009, 08:30 AM I would spend your time on something more useful.... About disk optimization with Mac OS X Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
	QUOTE Thanks

cwa107 #4 (permalink)
Member Since: Dec 20, 2006 Location: Middletown, Pennsylvania Posts: 25,917 Mac Specs: 15" MBP, Core i7/2GHz, 8GB RAM, 256GB Crucial M4 SSD	07-20-2009, 09:23 AM NOTE: Merged duplicate threads. Please do not cross-post. Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
	QUOTE Thanks

bobtomay #9 (permalink)
Member Since: Dec 22, 2006 Location: Texas, where else? Posts: 21,815 Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1	07-21-2009, 07:50 AM One more time - you don't need to - OS X handles this quite well on it's own. Just checked my system last night, been running it for almost 2 years now without defragging or a fresh install. It was 0.6% fragmented. And I install, remove and modify tons of files on an ongoing basis. Unless you're hitting the point of less than 25% free space, a defrag is typically not going to help with OS X. If you are hitting that percentage, I suggest freeing up some space. If you're insistent that you want to defrag, you can grab the app iDefrag. I cannot be held responsible for the things that come out of my mouth. In the Windows world, most everything folks don't understand is called a virus. Place your vote for our Member of the Month
	QUOTE Thanks

bobtomay #11 (permalink)
Member Since: Dec 22, 2006 Location: Texas, where else? Posts: 21,815 Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1	07-21-2009, 11:31 AM Assume you're referring to my current fragmented percentage. I downloaded the iDefrag demo. With the amount of data in and out on my personal machines, Windows was always hitting 20% fragmented in about a month of regular use although I had it set up to auto defrag once a week when it was already hitting 10% or better. After 2 1/2 yrs with OS X, I still have this habit of checking to see if I need to defrag or not once every 3-4 months, and so far the percentages have been so insignificant as to not make the purchase of iDefrag even remotely advantageous to me. If you're running a nearly full drive it could be different for you. I cannot be held responsible for the things that come out of my mouth. In the Windows world, most everything folks don't understand is called a virus. Place your vote for our Member of the Month Last edited by bobtomay; 07-21-2009 at 11:37 AM.
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abhinay #1 (permalink)
Member Since: May 30, 2009 Posts: 7	07-20-2009, 08:23 AM hello, i am developing an application which can provide the deframentation of harddrive in mac os x. then tell me is there any terminal command to do the same. plz help me out regards abhinay chauhan s/w engg
	QUOTE Thanks

abhinay #6 (permalink)
Member Since: May 30, 2009 Posts: 7	07-21-2009, 12:16 AM hello, sory, i didn't get ur ans . tell me how can i defragment our hard disk partion and my query is---- i am developing an application which can provide the defragmentation feature for mac os x (just like window ) to speed up our system. which can defrag our fragmented files and arrange all the free space at the end of the partition. tell me how can i do so? tell me is there any terminal command to do the same? please help me out .............
	QUOTE Thanks

ADKhikerVW #7 (permalink)
Member Since: Aug 18, 2007 Location: Wilmington, NY Posts: 715 Mac Specs: 15" Unibody MBP (2009), White MB (2009), iMac G4	07-21-2009, 12:25 AM You don't need to defragment your hard disk with Mac OS X. The file system handles this automatically.
	QUOTE Thanks

abhinay #8 (permalink)
Member Since: May 30, 2009 Posts: 7	07-21-2009, 01:34 AM file system only defrag the file which is under 20 MB size. but i want to defrag the files above then this size. if file system hands it then tell me which exec the file system run to do the same . and tell me the path , how can i defrag our hard disk in mac os x????????? thanks abhinay chauhan
	QUOTE Thanks

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