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US 8,069,384 B2Granted
Scanning reassigned data storage locations
AssigneeSeagate Technology LLC
InventorsBo Wei, Patrick Tai Heng Wong, MingZhong Ding
Life of this patent
Estimating the term…
Abstract
An aspect of the present disclosure relates to scanning reassigned data storage locations. In one example, a reassignment table is accessed to identify a deallocated data storage location and scan the deallocated data storage location for media defects.
Claims12
A method comprising:
- receiving a command for a data operation for a first set of addresses associated with storage locations of a data storage medium;
- performing the data operation on the data storage medium for the first set of addresses during a first portion of a time period associated with execution of the command received for the data operation;
- and
- scanning at least one storage location for media defects during a second portion of the time period, wherein the at least one storage location has an address that is different than the addresses in the first set.
1 more element
A method comprising:
- scanning a de-allocated storage location for a media defect while executing a read/write command;
- removing a reassignment table entry if no media defect is detected during the scanning step;
- writing to the de-allocated storage location;
- and
- copying data from an alternate storage location to the de-allocated storage location.
2 more elements
Dependencies are inferred from the claim text.