I was having this problem with my late 2008 MBP - it had a 500Gb Seagate 5400RPM drive in it. Essentially it would randomly pause.
Tried fresh installs, no help. I ended up swapping out to a 500Gb 7200RPM unit, and putting the 5400rpm unit in my Mini.
Now I cloned from the 500Gb/5400 to the Seagate 500Gb/7200RPM - problem has completely gone.
As a side note I don't get the issue on the Mini either from what I can tell. To be fair that's mainly a media centre though so doesn't get used anything like as much actively.
Some stuff on my blog about it here: http://www.markc.me.uk/MarkC/Blog/Entries/2009/6/13Macbook_Pro_Hard_DiskUpgrade.html
Interesting story about your HDD upgrade but not very usefull....
I bought this machine to WORK. Not to freeze my system for 10-20 secs every couple of minutes. That is not how it should be, not as expected and totally unacceptable. End of story .
Upgrading to a faster HDD should not be necessary.
Actually, I expect this to be a software problem. 10.5 already was quite slow compared to Tiger and with every upgrade Apple is screwing up worse... Let's not talk about iTunes 8.2 because I will explode...
Anyway, anyone some suggestions? It's driving me nuts.
Couldn't agree with you more mate. Especially if the drive is part of the stock delivered by Apple.
If you have an external firewire drive try cloning to that and booting from it. It may rule out/in the internal hard drive actually having an issue. You'll get slower performance from the f/w drive of course, but it should at least be consistent and without the pauses.
I mean if it is consistent, and you don't get the pauses, and you cloned, you'll know it's likely an issue with the hard disk itself.
Do you know what unit the 500Gb is? The one I was having issue with was a ST9500325AS.
Well all I can say is that I get random pauses too and I have a 500GB 7200RPM Drive which also makes some very odd noises which kind of makes me think it is not your drive at all but may indeed be software related. Have you run a hardware test at all? Is your drive S.M.A.R.T. verified? Just a couple of things to check I understand your frustration completely. I am totally naffed off that I specd a 7200 drive and it gives pauses. In my case I know it is the drive and mine is going back because I have only had it for a few days.
Capacity: 465.76 GB
Model: Hitachi HTS545050B9SA02
Serial Number: 090515PBC400Q7GP8GMA
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Mac OS 9 Drivers: No
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Just the disk that came with the machine. It was an of-the-shelf machine. Standard setup for the new 2.8 GHz. No BTO.
To those who posted--Remember that the Late 2008 and all 2009 MBPs now have a separate forum area due to significant hardware changes. It's here:
People with machines of your generation hang out there and more help may be available by moving your posts.
If you did the update read this thread and proceed to contact Apple Care about it as they need to know you have this problem with stock drives and you need your machine fixed. Take it back end of story!!!