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US 7,627,778 B2Granted
Prediction-based data reassignment
AssigneeSeagate Technology LLC
InventorsHuaYuan Chen, MingZhong Ding, Patrick TaiHeng Wong, CheeSeng Toh, KianKeong Ooi, JackMing Teng
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Abstract
A method of handling a write error is provided. A write error is detected during a write operation on at least one data storage segment. A reassignment mode is selected from a plurality of different reassignment modes.
Claims18
A method of handling a write error comprising:
- detecting a write error during a write operation on at least one data storage segment;
- gathering empirical evidence related to at least one of position error signal (PES) information and repeatable runout (RRO) drift for the write error;
- and
- selecting a reassignment mode from a plurality of different reassignment modes based on the empirical evidence.
1 more element
A data storage system comprising:
- a storage medium logically divided into data segments;
- processing circuitry configured to carry out the reallocation of data by:
- detecting a write error during a write operation on at least one of the data storage segments;
- gathering empirical evidence related to at least one of position error signal (PES) and repeatable runout (RRO) drift for the write error;
- and
- selecting a reassignment mode from a plurality of different reassignment modes based on the empirical evidence.
3 more elements
A method of handling a write error comprising:
- detecting a write error during a write operation on at least one data storage segment;
- gathering empirical evidence indicative of the write error;
- and
- selecting a reassignment mode from a plurality of different reassignment modes based on the gathered empirical evidence.
1 more element
Dependencies are inferred from the claim text.