about fragmentation (of free disk space)

[Michael David Crawford]

In principle a highly fragmented disk has less payload capacity, and
will be slower to access because of all the indirect blocks.

I don't know whether that makes a real-world difference.
Michael David Crawford P.E., Consulting Process Architect
mdcrawford at gmail.com
http://mike.soggywizard.com/

      One Must Not Trifle With Wizards For It Makes Us Soggy And Hard To Light.


On Sun, Oct 11, 2015 at 8:06 PM, James Linder <jam at tigger.ws> wrote:
>
>> On 12 Oct 2015, at 3:00 am, macports-users-request at lists.macosforge.org wrote:
>>
>>> random access time for a SSD is 1-3 orders of magnitude less than for a rotational drive.
>>>
>>> As with anything, you need to measure ?real world use? to be certain, but it?s probably not an issue for SSDs at all.
>>
>> I'm not expecting it to be in real world usage, of course. OTOH, frequent defragmenting is probably not a good idea on SSDs.
>
> Actually defrag of an SSD is a VERY BAD IDEA. It will drasically reduce the life of your SSD, the fuller the disk the more fragmented the more it will eat your disk.
>
> James
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