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Author Topic: Google Releases Paper on Disk Reliability  (Read 3928 times)

KenR

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Google Releases Paper on Disk Reliability
« on: February 19, 2007, 08:01:03 PM »
Troubling news about the effectiveness of SMART

Quote
Despite this high correlation, we conclude that models based on SMART parameters alone are unlikely to be useful for predicting individual drive failures. Surprisingly, we found that temperature and activity levels were much less correlated with drive failures than previously reported...

Kenneth P. Reeder, Ph.D.
Clinical Psychologist
Jacksonville, North Carolina  28546

mouser

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Re: Google Releases Paper on Disk Reliability
« Reply #1 on: February 19, 2007, 08:22:05 PM »
The conclusions are interesting that heat and usage is not a very good predictor of failure.. I guess basically the take-home message is what we all suspect: failure of disk drives is unpredictable - so backup your stuff regularly!

Carol Haynes

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Re: Google Releases Paper on Disk Reliability
« Reply #2 on: February 20, 2007, 05:00:00 AM »
Also mentioned on the BBC website: http://news.bbc.co.u...chnology/6376021.stm

f0dder

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Re: Google Releases Paper on Disk Reliability
« Reply #3 on: February 20, 2007, 08:50:58 AM »
The conclusions are interesting that heat and usage is not a very good predictor of failure.. I guess basically the take-home message is what we all suspect: failure of disk drives is unpredictable - so backup your stuff regularly!
Heat and usage might not be absolutes, but in my humble experience with a much more limited amount of drives than google :), excessive heat and the kind of disk usage where there's a lot of head movement (ie, fragmented files as opposed to long linear unfragmented) reads/writes) do wear down drives faster.
- carpe noctem

app103

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Re: Google Releases Paper on Disk Reliability
« Reply #4 on: April 27, 2007, 09:59:33 AM »
Here is an article comparing the Google results to the recent Carnegie Mellon study:

http://www.pcworld.c...-page,1/article.html