Patent ID: 11862211
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A method comprising:
assigning, by one or more processing devices, one or more logical tracks to physical tracks of two or more disk surfaces such that a respective logical track of the logical tracks comprises:
at least a portion of sectors of a primary physical track of the physical tracks, the primary physical track being on a first disk surface of the disk surfaces; and
at least a portion of sectors of a donor physical track of the physical tracks, the donor physical track being on a second disk surface of the disk surfaces, different from the first disk surface, and donating fractions of its track as logical blocks to the respective logical track that includes sectors from the primary physical track,
wherein, to compensate for decreasing sectors per track at decreasing diameters of one or more disks, a logical track comprising sectors of a primary physical track having a shorter diameter has more donor track logical blocks, relative to a logical track comprising sectors of a primary physical track having a longer diameter; and
performing, by the one or more processing devices, using a first head proximate to the first disk surface and a second head proximate to the second disk surface, a data access operation with at least one of the logical tracks.