[CentOS] SMART Prefailure Attribute messages

[John Bowden]

On Wednesday 17 October 2007 14:59:36 Reuben D. Budiardja wrote:
> Hello,
> My machine is running Software RAID 5 on /dev/hde1, /dev/hdg1,/dev/hdi1. I
> noticed on the log that suddenly we are getting messages such as :
>
> Oct 14 01:27:16 localhost smartd[4801]: Device: /dev/hde, SMART Prefailure
> Attribute: 8 Seek_Time_Performance changed from 247 to 246
> Oct 14 01:57:15 localhost smartd[4801]: Device: /dev/hde, SMART Prefailure
> Attribute: 8 Seek_Time_Performance changed from 246 to 245
> Oct 14 02:27:15 localhost smartd[4801]: Device: /dev/hde, SMART Prefailure
> Attribute: 8 Seek_Time_Performance changed from 245 to 246
> Oct 14 02:27:15 localhost smartd[4801]: Device: /dev/hde, SMART Usage
> Attribute: 195 Hardware_ECC_Recovered changed from 253 to 252
> Oct 14 02:57:15 localhost smartd[4801]: Device: /dev/hde, SMART Prefailure
> Attribute: 8 Seek_Time_Performance changed from 246 to 245
> Oct 14 02:57:15 localhost smartd[4801]: Device: /dev/hde, SMART Usage
> Attribute: 195 Hardware_ECC_Recovered changed from 252 to 253
>
> Similar messages for /dev/hdi and /dev/hdg also, however it seems
> that /dev/hde has the most and have been occuring the longest.
>
> [root at localhost log]# grep SMART messages messages.1 | grep hde | wc
>     178    3023   25944
> [root at localhost log]# grep SMART messages messages.1 | grep hdg | wc
>      93    1578   13583
> [root at localhost log]# grep SMART messages messages.1 | grep hdi | wc
>      95    1612   13865
>
> This did not happen a week ago:
> [root at pathfinder log]# grep SMART messages.2
>
> Checking /proc/mdstat indicates that all the drives are active i.e. RAID is
> not running in degraded mode.
>
> So, is it that suddenly my drives are failing ?
> Any comment or suggestion is greatly appreciated.
>
> Thanks.
> RDB

Smart errors are an indication of a pending hard drive failure. If you are 
getting this type of error on all the drives in the array and they are all 
the same age then I would replace the drives as soon as possible. 

-- 
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with honest intentions, (he was going to blow them up!)
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