dexter11 Posted February 21, 2007 Report Share Posted February 21, 2007 ...is false. Two very interesting articles were written about hard disks in the last week. One is from Google. They analyzed about 100,000 disk drives. Their results are surprising to say the least. Briefly MTBF (Mean Time Between Failure) MTBF figures are just like any other storage performance statistic: it's a miracle if you see them in real life. SMART is not smart etc. You can read the full study here (pdf), or read a brief summary here. The second article is from Bianca Schroeder of CMU's Parallel Data Lab. She also looked at 100,000 drives including HPC clusters at Los Alamos and the Pittsburgh Supercomputer Center, as well as several unnamed internet services providers. She also had some very interesting experiences: costly enterprise drives are not at all more reliable than the drives we use. RAID 5 is not safe etc. You can read the full study here, or read a brief summary here. source: hup.hu Quote Link to comment Share on other sites More sharing options...
javaguy Posted February 21, 2007 Report Share Posted February 21, 2007 This kinda jibes with what I've always thought intuitively. Lesson: Backup, backup, backup. Quote Link to comment Share on other sites More sharing options...
Ixthusdan Posted February 21, 2007 Report Share Posted February 21, 2007 Backup is the only logical method. RAID might be necessary for 24/7 running, but backup cannot be replaced for data safety. Quote Link to comment Share on other sites More sharing options...
daniewicz Posted February 21, 2007 Report Share Posted February 21, 2007 Thanks for the links dexter11 Quote Link to comment Share on other sites More sharing options...
dexter11 Posted February 22, 2007 Author Report Share Posted February 22, 2007 Thank it to hup.hu. I just copy the news here. Quote Link to comment Share on other sites More sharing options...
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