[wellylug] High load averages but no apparent cause

[Daniel Reurich]

Does anything show up in the syslog or dmesg that indicates sata i/o
port resets or anything like that?? 

Daniel Reurich

On Wed, 2010-03-24 at 20:53 +1300, David Harrison wrote:
> On Wed, Mar 24, 2010 at 6:36 PM, Daniel Pittman <daniel at rimspace.net>
> wrote:
>         David Harrison <david.harrison at stress-free.co.nz> writes:
>         
>         
>         > I will try the deadline scheduler tonight and see if that
>         makes a
>         > difference.
>         
>         
>         You should be able to make the change at run-time, through
>         sysfs, I believe.
>         It is a property of the hardware devices, IIRC, in sysfs.
> 
> 
> 
> 
> I tried out a few of the schedulers and none of them helped the
> problem.
> If anything I'd have to say it got worse.
> 
> 
> As a final test I have switched to the kernel that was installed
> originally by Ubuntu (2.6.24-24-server).
> The problem still exists and I know for sure it didn't when things
> were first setup.
> - There's just no way we could have migrated 400gig of data onto the
> RAID if it was this flakey.
> 
> 
> Whatever it is is hardware related, and it seems to be getting worse
> over time...
> 
> 
> 
> 
> David
> 
> 
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-- 
Daniel Reurich.

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