Adjustable sub-regions for shingled magnetic recording
US12327576B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2024 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Feb 7, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1292
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data is written in tracks in a first sub-region of a region of a disk using Shingled Magnetic Recording (SMR). It is determined whether a predetermined data storage capacity for the region can be reached by adding a sub-region guard band and shingle writing throughout a remaining portion of the region using a lower limit of track overlap. The sub-region guard band does not store data and separates the first sub-region from a second sub-region in the region. In response to determining that the predetermined data storage capacity for the region can be reached by adding the sub-region guard band and shingle writing with the lower limit of track overlap throughout the remaining portion of the region, the sub-region guard band is added, and the second sub-region is shingle written with at least as much track overlap as the lower limit of track overlap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.