Error messages: "Correctable Non-Mirrored Demand Data ECC"

[vincent at cojot.name]

On Tue, 21 Dec 2010, Peter Matulis wrote:

>
> Thanks a lot for that.  This is my output:
>
> mc0: 0 Uncorrected Errors with no DIMM info
> mc0: 0 Corrected Errors with no DIMM info
> mc0: csrow0: 0 Uncorrected Errors
> mc0: csrow0: ch0: 0 Corrected Errors
> mc0: csrow0: ch1: 0 Corrected Errors
> mc0: csrow0: ch2: 0 Corrected Errors
> mc0: csrow0: ch3: 0 Corrected Errors
> mc0: csrow1: 0 Uncorrected Errors
> mc0: csrow1: ch0: 0 Corrected Errors
> mc0: csrow1: ch1: 0 Corrected Errors
> mc0: csrow1: ch2: 0 Corrected Errors
> mc0: csrow1: ch3: 0 Corrected Errors
> mc0: csrow2: 0 Uncorrected Errors
> mc0: csrow2: ch0: 0 Corrected Errors
> mc0: csrow2: ch1: 0 Corrected Errors
> mc0: csrow2: ch2: 1 Corrected Errors
> mc0: csrow2: ch3: 2005594 Corrected Errors
> mc0: csrow3: 0 Uncorrected Errors
> mc0: csrow3: ch0: 0 Corrected Errors
> mc0: csrow3: ch1: 0 Corrected Errors
> mc0: csrow3: ch2: 1 Corrected Errors
> mc0: csrow3: ch3: 0 Corrected Errors
>
> I have 8x2GB modules.  Would you know which ones need replacing?

Hi Peter,

Obviously you had lots of errors on mc0, csrow2, ch3. I am not sure which 
DIMM (or DIMM connector) this identifies on your P690.
Howerver, some others have gone down that path already so you may 
find the following post useful:
http://serverfault.com/questions/5672/ecc-chipkill-errors-which-dimm

I hope this helps,

Vincent