[plug] odd temperature and parameter changes reported in /var/log/messages

[Patrick Coleman]

On 11/29/07, Denis Brown <dsbrown at cyllene.uwa.edu.au> wrote:
> Dear PLUG list members,
>
> Sorry, another long post but the "executive summary" is near the top :-)
>
> A new system being "bedded down" prior to shipment overseas for research
> work, exhibits occasional freezes
> such that no keyboard or mouse actions are recognised, display remains
> static, cannot SSH into the machine when in this state.   Only solution is
> power-cycle or hard reset.

The first thing I would do when getting freezes like this is to run
memtest86 overnight and see if it picks up anything. Dodgy ram is
reasonably common.

> Nov 28 15:23:23 spcnwks004 smartd[3712]: Device: /dev/sda, SMART Prefailure
> Attribute: 1 Raw_Read_Error_Rate changed from 253 to 100
> Nov 28 15:53:24 spcnwks004 smartd[3921]: Device: /dev/sda, SMART Usage
> Attribute: 190 Temperature_Celsius changed from 139 to 136

The Temperature_Celsius is nothing to be worried about, it's just
smartd reporting that the temperature has changed. The actual numbers
are often fairly meaningless. Anyway, it should be fairly obvious if
the drive is at 130 degress :)

The Raw_Read_Error_Rate I'm not sure about; perhaps google and see if
it's anything major?

-Patrick

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