Comments on: HDD failure warning in Ubuntu Karmic (9.10) https://blog.al4.co.nz/2009/09/hdd-failure-warning-in-ubuntu-karmic-9-10/ My hobby... Thu, 15 Apr 2010 14:04:25 +0000 hourly 1 https://wordpress.org/?v=7.0 By: shirish https://blog.al4.co.nz/2009/09/hdd-failure-warning-in-ubuntu-karmic-9-10/#comment-47 Thu, 15 Apr 2010 14:04:25 +0000 http://blog.al4.co.nz/?p=307#comment-47 Hi there,
This was the paper I am guessing he was talking about labs.google.com/en//papers/disk_failures.pdf

]]> By: Alex https://blog.al4.co.nz/2009/09/hdd-failure-warning-in-ubuntu-karmic-9-10/#comment-46 Sat, 31 Oct 2009 02:36:13 +0000 http://blog.al4.co.nz/?p=307#comment-46 Interesting, thanks. I think for something like bad sectors I would still take it seriously, but it seems you do need to look at what you are being warned about before jumping to conclusions. I’d be interested in seeing a link to that study if you have it?

]]> By: Greg Kochanski https://blog.al4.co.nz/2009/09/hdd-failure-warning-in-ubuntu-karmic-9-10/#comment-45 Sat, 31 Oct 2009 00:50:15 +0000 http://blog.al4.co.nz/?p=307#comment-45 You are one of the lucky ones: you disk actually was bad, in addition to seeming bad. Pampliset, despite having a nifyt user interface, doesn’t seem to do a very good job of predicting disk failure. If you look at the bug reports, you’ll find that lots of false positives. Google did a study of SMART parameters, and concluded that while they had some predictive power, they really were not good enough to usefully predict disk failures. (I.e. the best statistical analysis Google could do would make many false predictions of failure, and that disks could run for a year or more while the best algorithms were predicting immediate failure.)

Palimpsest, internally, is not statistical software. So, you should (generally) not takes its warnings seriously.

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