On 6/29/2017 7:45 PM, Sitsofe Wheeler wrote: First of all, thanks for following up on this. > That output looks like it comes from SMART monitoring of your disks > (i.e. you have a script regularly monitoring for changes in smartctl > output and sending the results to logwatch or emailing you). Further, > it looks like in your case smartctl doesn't know how to correctly > interpret the "Offline uncorrectable sectors" value - perhaps because > you're disks are "new" you need a more recent smartctl? This is a newly installed CentOS 7.3 system so everything is in the state that RedHat supplies. > However, I'd be somewhat worried that the "Offline uncorrectable > sectors" are changing at all. It is one of the few values that has a > strong predictive power of a spinning disk being faulty (see > https://www.backblaze.com/blog/what-smart-stats-indicate-hard-drive-failures/ > ) but since you're on an SSD I don't know if it's predictive power is > as good. If the uncorrectable error count were real, then I'd agree with you 100%. However, since those values appear only once during the early stages of a 24 hour fio job and don't appear again later with higher numbers of erros, and because the ddcli interface to the flash card shows no errors at all, I'm inclined to ignore them. The fio job finished fine. Jon Forrest Dolby Labs -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
