Radial positioning of data to improve hard disk drive reliability
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 6, 2004
Grant Date -
Dec 12, 2002
app pub date -
May 14, 2001
filing date -
May 14, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To optimize the life of a magnetic disk data storage device it is recognized that the accessing of data on the disk data surface should mimic the varying effective lubricant protection over the disk surface. The lubricant applied to the disk data surfaces migrates outward during drive operation. To match the disk surface protection to the frequency of data accesses at the storage locations, the stored data files are periodically examined to determine how recently access has occurred and the number of accesses during a most recent fixed period to determine whether the data file is to be stored in radially inner or radially outer portions of the band of concentric data tracks. By thus allocating the data file storage location, the data is accessed and intermittent contact between disk surface and transducer carrying slider occurs with greatest frequency where the lubricant coating is least depleted and most robust.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully