Sub-track granularity for preserving point-in-time data
US12430358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jun 1, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2237
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for reconstituting a data storage unit of a volume, the method comprising: initializing a reconstituted data storage unit that includes a plurality of portions; identifying a first type-1 data structure that corresponds to the data storage unit and a first snapshot of the volume, the first snapshot being created at a first point-in-time, the first type-1 data structure including a first bitmap, the first bitmap including a first plurality of bits, each of the first plurality of bits corresponding to a different portion of the data storage unit; retrieving, from the first snapshot, one or more portions of the data storage unit that correspond to bits in the first bitmap that are set, and storing the portions that are retrieved from the first snapshot in the reconstituted data storage unit; and returning the reconstituted data storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.