US 12,131,758 B2
Fast partial erasure for drive sanitization
Xiong Liu, Singapore (SG); Lihong Zhang, Singapore (SG); Quan Li, Singapore (SG); and Wenxiang Xie, Singapore (SG)
Assigned to Seagate Technology LLC, Fremont, CA (US)
Filed by Seagate Technology LLC, Fremont, CA (US)
Filed on Jul. 19, 2023, as Appl. No. 18/223,896.
Claims priority of provisional application 63/406,401, filed on Sep. 14, 2022.
Prior Publication US 2024/0087598 A1, Mar. 14, 2024
Int. Cl. G11B 5/265 (2006.01); G11B 5/55 (2006.01)
CPC G11B 5/2654 (2013.01) [G11B 5/5547 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a threshold error rate that will result on data stored on a magnetic disk surface of a disk drive being unrecoverable;
determining a seek velocity that will overwrite sufficient portions of the data such the data will exhibit at least the threshold error rate; and
performing at least one traversal of the magnetic disk surface with a head of the disk drive that emits an erase field during the at least one traversal at the seek velocity, the at least one traversal sanitizing the data.