[Ti] Disk optimization

Dejan Sinadinovic sinadin at yuonline.net
Fri Jun 11 22:24:43 PDT 2004


thanks for the link Wilson!

D.

On Jun 12, 2004, at 3:58, Wilson Ng wrote:

> Panther has on the fly disk defragmentation.
>
> Read here:
>
>
> http://www.kernelthread.com/mac/apme/optimizations/
>
> The relevant quote from that article is:
>
>
>> 5. On-the-fly Defragmentation
>>
>> When a file is opened on an HFS Plus volume, the following conditions 
>> are
>> tested
>> ?      If the file is less than 20 MB in size
>> ?     If the file is not already busy
>> ?     If the file is not read-only
>> ?     If the file has more than eight extents
>> ?     If the system has been up for at least three minutes
>>
>> I all of the above conditions are satisfied, the file is relocated -- 
>> it is
>> defragmented on-the-fly.
>>
>> File contiguity (regardless of file size) is promoted in general as a
>> consequence of the extent-based allocation policy in HF  Plus, which 
>> also
>> delays actual allocation. Refer to Fragmentation In HFS Plus Volumes 
>> for more
>> details.
>
> For more control, TechTool Pro 4 from http://www.micromat.com/ 
> includes disk
> optimization:
>
>> TechTool Pro 4 now offers a new optimization feature for your Mac OS 
>> X drive.
>> The Mac OS X system contains thousands of files that fragment quickly.
>> TechTool Pro 4 lets you quickly and safely unfragment these and other 
>> files so
>> your system runs reliably at its peak
>
> It's well worth the price. Norton Utilities for OS X has been 
> discontinued
> so I wouldn't look into that as an avenue to explore.
>
> On 6/11/04 11:17 PM, the Defendant "PowerBook G4 Titanium List"
> <Titanium at lists.themacintoshguy.com> said:
>
>> Subject: Re: Disk optimization
>> Date: Fri, 11 Jun 2004 14:31:16 +0200
>>
>> How bizarre! I can't find any downloadable program for disk
>> optimization/defragmentation on the internet! Isn't that strange? D.
>>
>>
>
>
> :-)  Wilson - Guam, U.S.A.
>
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