>> Well, a good start is to use something like SMART monitoring set up to >> alert you when any drive enters what it considers a pre-fail state. >> (Which can be simple age, increasing numbers of hard errors, increasing >> variation in spindle speed, increasing slow starts, etc, etc...) > > FWIW: Nexan, Xyratec and Infortrend all have SMART tracking disabled on > their hardware arrays because they claim it usually only says a drive is > on its way out a few hours after it died. >
I would say this is true for smart PASS / FAIL but if you look at the raw SMART data you can use this to predict failure before it totally fails. At least I have been able to predict this for the 10 to 20 drives that have died here at work since 2009. I usually know a week or so before a drive is going to die and I pull the drive from the raid for further testing. And what I mean as further testing is I do a 4 pass badblocks read / write test looking at the SMART raw data before and after. John ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
