Among other indicators we used at Amazon to determine hard drive failure, we used the following thresholds from SMART data:
field 5 (reallocated sector count) > 1000 field 187 > 0 field 197 > 0 field 198 > 0 field 199 can be an indicator of a bad cable, backplane or storage controller, track changes over time any field that reports FAILING_NOW is an automatic flag as failed We use other indicators, but those I'm not allowed to disclose under NDA. Hope this is helpful :) " 'With the first link, the chain is forged. The first speech censured, the first thought forbidden, the first freedom denied, chains us all irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and warning... The first time any man's freedom is trodden on, we’re all damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG episode "The Drumhead" - Alex Smith - Huntsville, Alabama metropolitan area USA On Sat, Feb 21, 2015 at 3:27 PM, Andrew Farnsworth <[email protected]> wrote: > Alex! > Thanks for this, it's very useful > > Andy > On Feb 21, 2015 2:12 PM, "Alex Smith (K4RNT)" <[email protected]> > wrote: > >> While I was with Amazon.com, one of my duties was replacing failing hard >> drives. We used smartmontools a lot, and to make the readout easier to >> read, I put together a regular expression and piped it through awk to get >> just the fields I needed. >> >> I thought I'd share it with everybody. If you want to help me simplify it >> or make it better, please feel free. >> >> No particular licensing, this is too simple. If anything, I'd license it >> under the University of Illinois/NCSA License. Have fun! >> >> alex@linux-desktop:~> sudo /usr/sbin/smartctl -A -i /dev/sda | awk >> '/Model|Serial|Local|^ 5|^187|^197|^198|^199|FAILING|^192/' >> Model Family: Intel X18-M/X25-M/X25-V G2 SSDs >> Device Model: INTEL SSDSA2M080G2GC >> Serial Number: BTPO05200047080JGN >> Local Time is: Sat Feb 21 13:02:03 2015 CST >> 5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always >> - 5 >> 192 Unsafe_Shutdown_Count 0x0032 100 100 000 Old_age Always >> - 254 >> >> Cheers. >> >> " 'With the first link, the chain is forged. The first speech censured, >> the first thought forbidden, the first freedom denied, chains us all >> irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and >> warning... The first time any man's freedom is trodden on, we’re all >> damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG >> episode "The Drumhead" >> - Alex Smith >> - Huntsville, Alabama metropolitan area USA >> >> -- >> -- >> You received this message because you are subscribed to the Google Groups >> "NLUG" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/nlug-talk?hl=en >> >> --- >> You received this message because you are subscribed to the Google Groups >> "NLUG" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > -- > -- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nlug-talk?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en --- You received this message because you are subscribed to the Google Groups "NLUG" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
