[CentOS] SMART errors Hardware_ECC_Recovered and Raw_Read_Error_Rate

Hi All,

Im seeing these errors (below) between 2 and 40 times a day, for the last year (or more if i had the older logs) in /var/log/messages. The values consistently toggle between 4 or so values, drifting up and down but never outside the mean +-2 /dev/hda sits around 21 to 38 degrees (according to smartctl)

Does anyone know *how* serious they are? I cant find much on the web other than the theory that any error is bad, so replace the disk.

Thanks for your time,

MrKiwi.

Jun 13 04:45:03 myserver smartd[3047]: Device: /dev/hda, SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 60 to 61 Jun 13 04:45:03 myserver smartd[3047]: Device: /dev/hda, SMART Usage Attribute: 195 Hardware_ECC_Recovered changed from 60 to 61