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From: Mats Weber on 11 Apr 2010 08:01
Hello,

I have a MacBook Pro 15" (late 2008, the version just before the long
lasting battery) with Mac OS 10.6.3 and all the latest updates.

It works fine most of the time, except that from time to time, it
freezes for 30 seconds or so (sometimes less, sometimes more). The
freeze seems to be related to hard disk activity because everything that
does not need disk access (like magnifying icons in the dock) keeps
working.

The problem has survived a complete reinstall as well as cloning the
system from another perfectly working Mac.

Has anybody else experienced the problem and found a solution ?

Thanks
From: Howard S Shubs on 11 Apr 2010 11:01
In article <mats-A2E344.14014911042010(a)135.115.in-addr.arpa>,
Mats Weber <mats(a)weber.org> wrote:

> Has anybody else experienced the problem and found a solution ?

Check Disk Utility and the Console to see if your drive is logging
errors.

--
May all your good dreams and fine wishes come true!
May joy be yours all the days of your life!
From: Steven Fisher on 11 Apr 2010 11:56
In article <mats-A2E344.14014911042010(a)135.115.in-addr.arpa>,
Mats Weber <mats(a)weber.org> wrote:

> The problem has survived a complete reinstall as well as cloning the
> system from another perfectly working Mac.

Then it's hardware. And it's probably the hard drive.


Steve
From: Jolly Roger on 11 Apr 2010 12:55
In article <mats-A2E344.14014911042010(a)135.115.in-addr.arpa>,
Mats Weber <mats(a)weber.org> wrote:

> Hello,
>
> I have a MacBook Pro 15" (late 2008, the version just before the long
> lasting battery) with Mac OS 10.6.3 and all the latest updates.
>
> It works fine most of the time, except that from time to time, it
> freezes for 30 seconds or so (sometimes less, sometimes more). The
> freeze seems to be related to hard disk activity because everything that
> does not need disk access (like magnifying icons in the dock) keeps
> working.
>
> The problem has survived a complete reinstall as well as cloning the
> system from another perfectly working Mac.
>
> Has anybody else experienced the problem and found a solution ?
>
> Thanks

The symptoms you describe are common for a hard drive that is about to
fail.

1. Stop what you are doing immediately and back up everything you value
from that hard drive.

2. If you want to verify that hard drive errors are the cause of the
freezes, open the /var/log/system.log file (you'll need to be
administrator), and look for any disk or I/O errors in the log.

3. Boot the computer on the Mac OS X install DVD, and look in the
installer menu for Tools > Disk Utility. Run Disk Utility's "Verify
Disk" command (not the "Verify Permissions" command) to see what
problems it finds.

--
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JR
From: Mats Weber on 11 Apr 2010 14:15
I checked the logs. Nothing in system.log or any other log. Disk Utility
says the disk is fine. No noises from the drive.
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