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Disk Drive Vintage and Its Effect on Reliability

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storage management

Overview Field failure data for 3 disk drive families from 3 drive manufacturers is analyzed. The analyses illustrate the effects of design and manufacturing process improvements implemented throughout the drive's production life on the reliability of disk drives. Also, the resultant effect of convolution of different shipment volumes and different vintage drives reliability is studied. Two drive families show distinct reliability differences between drive vintages. The newer vintage drives are more reliable than the older vintage drives. One interesting observation is the ratio of average failure rate during the first three or four months of production to the average failure rate later in time when failure rate has stabilized. This ratio is observed to be between 2 and 3.

Further White Paper Details
Publisher	Network Appliance (NetApp)	File Format	PDF
Date Published	October 2003
Format	White Papers
Topics	Storage Management, Hard Drives

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