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Study says failure rates 15 times that of what manufacturers indicate Study says failure rates 15 times that of what manufacturers indicate
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Study says failure rates 15 times that of what manufacturers indicate
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Old 11th March 2007, 11:37   #1
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Default Study says failure rates 15 times that of what manufacturers indicate

A study released this week by Carnegie Mellon University revealed that hard drive manufacturers may be exaggerating their mean-time before failure (MTBF) ratings on hard drives. In fact, researchers at Carnegie indicated that on the average, failure rates were as high as 15 times the rated MTBFs

http://www.dailytech.com/article.aspx?newsid=6404
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Old 11th March 2007, 11:38   #2
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Quote:
In fact, researchers indicated that drive operating temperatures had little to no effect on failure rates -- a cool hard drive survived no longer than one running hot.
interesting...
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Old 11th March 2007, 13:08   #3
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ot they just quoted the google results


but the important thing is this:

In our data sets, the replacement rates of SATA disks are not worse than the replacement rates of SCSI or FC disks. This may indicate that disk-independent factors, such as operating conditions, usage and environmental factors affect replacement rates more than component specific factors.
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Old 11th March 2007, 13:22   #4
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people don't buy SCSI/FC disk for lower replacements, they are already running in RAID 5 at least, with support contracts to swap the disks without cost if one breaks down.
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Old 11th March 2007, 20:21   #5
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Originally Posted by Rutar View Post
ot they just quoted the google results


but the important thing is this:

In our data sets, the replacement rates of SATA disks are not worse than the replacement rates of SCSI or FC disks. This may indicate that disk-independent factors, such as operating conditions, usage and environmental factors affect replacement rates more than component specific factors.
As I recall the Google results differed a good bit in some areas, especially in regards to temperatures.
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Old 11th March 2007, 20:55   #6
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google results indicate lower temps give higher failure...
Massive Google hard drive survey
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