Does nearly full HD slow down performance??

My MacBook's internal HD is nearly full - roughly 30 GB worth. Lately, it has been taking longer than normal to open/use Safari, iTunes, iPhoto, etc. Does the fullness of my internal HD have any affect on computing perfomance? I have been thinking of getting a 250 GB external HD for a while but never did since my MacBook was still fast. I'll surely get one if it will increase my computing perfomance. If the slowness isnt related to HD free/used space, what should/could I do to speed up my performance??

MacBook, Mac OS X (10.6.5), 2 GHz Intel Core 2 Duo / 1 GB 667 MHz DDR2 SDRAM / 80 GB Hard Drive

Posted on Dec 22, 2010 12:33 PM

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16 replies

Dec 22, 2010 12:47 PM in response to John Lucente

Lack of free space can impact the speed of the computer, especially if your computer doesn't have enough RAM. If you're running 10.6.x with 1GB of RAM (as is indicated in your signature), you need to increase your RAM to at least 2 GB, if not more. 1GB is the minimum requirement for 10.6, and I, along with several others, recommend at least double the requirement.

How much free space does your hard drive have?

~Lyssa

Dec 23, 2010 4:08 PM in response to John Lucente

John Lucente wrote:
. . .
I would say I have probably 1.5-2.5 GB left, maybe less.


That's nowhere near enough. 😟

It varies greatly depending on your Mac's hardware and how you use it, but it may begin to slow noticeably with less than about 15% available, especially on a relatively-small disk like yours.

When you get down to just a few GBs, it may get very sluggish, and you risk application crashes, lost/corrupted files, and, eventually, your Mac will shut down and not restart.

You need to make some space, quickly! See http://www.thexlab.com/faqs/freeingspace.html for some suggestions.

Longer-term, your best bet is probably a much larger internal HD. Second best would be an external HD; move some little-used stuff onto it.

Dec 27, 2010 9:38 AM in response to John Lucente

I would say I have probably 1.5-2.5 GB left, maybe less.

Not only will a too full HDD slow down your computer, but it can lead to directory corruption and can even cause data loss and eventually an HDD crash. You should maintain a minimum of !5% of contiguous (unfragmented) space on your HDD for swap files and, more critically, to allow the directory to lay down new pieces of the Extents Overflow File. If there is not sufficient contiguous space extents will be overwritten with additional pieces of information which causes overlapping volume structures and file corruption. I suggest that you take steps immediately to free up some space as a temporary measure, then install a larger capacity HDD. Dr. Smoke's FAQ Freeing space on your Mac OS X startup disk offers useful suggestions for slimming the volume.

😉 cornelius

Jan 2, 2011 4:12 PM in response to John Lucente

My macbook, like most laptops, is useless for file-storage. I work with movie clips and photo media and found I had to purchase external hard drives.

Be VERY careful about storing precious files on these. I learned a heartbreaking lesson once when I moved my iPhoto library and my iMovie files to a Western Digital external hd, and deleted same from my macbook "just for an hour or so" while I finished a large movie project. When I went to move some of the files back, the external hard drive failed (the two-click-wind-down of death) and I lost all my precious files.

Now, because I have NO faith in external hard drives but find them a necessary evil, I spend my hard-earned money on two at a time, and back every single file up twice. I refuse to buy 1TB hard drives; stick with 500 MB and smaller. Additionally, I keep copies of all my photos on DVDs as a precaution. More expensive. More work. Better sleep at night.

In all my internet searches and through these forums, I've not been able to learn, in VERY basic language, what the difference is between "backing up" files and "moving files". Maybe you'll have better luck 🙂

Jan 3, 2011 4:07 AM in response to Radjin

Radjin wrote:
For the MacBook, Amazon sells a 1TB for about $116. It has all the SMART drive equipment so works well. This drive is 12mm is a tiny bit wider, be sure you have that bit of room in your laptop. So far I have not found a laptop that did not have the room.

For a desktop I can't help you other then use what Apple uses.



The 12mm drives do not fit in macbooks, they don't have the space. The largest 9.5mm drives I was able to find are either a 750GB offering from western digital, or a 640GB job from Samsung. I can vouch for the latter, given that I'm using one now...

Jan 7, 2011 8:46 AM in response to John Lucente

I just recenly bought a seagate 500GB portable external HD. I moved all my iTunes media from my Macbook HD to the external, clearning up 50% of my Macbook HD. It was a good deal too, $80, and my $50 christmas gift card it only cost me $30, which was nice. So far I have only noticed minor speed improvements but I assume that is due to the 1GB RAM I have. I may consider doubling that as well. Is that costly?

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Does nearly full HD slow down performance??

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