SMR-aware append-only file system
US9324367B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2015 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | May 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1238
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A shingled magnetic recording (SMR) append-only file system includes a disk comprising a plurality of concentric append-only shingled data bands having partially overlapping data tracks, wherein the data bands are associated with a circular linked list having a head data band and a tail data band, the head data band and the tail data band each comprising a plurality of data blocks. The system also includes a processor configured to write data blocks to the disk, and create a new file wherein an empty data band of the plurality of data bands is removed from the circular linked list and added to a single linked list of the new file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.