Method and apparatus for snapshot creation
US12277325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2023 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Jul 21, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, comprising: retrieving a VDG definition; processing the VDG definition to identify a primary storage system and one or more secondary storage systems; detecting a consistency formation event; transmitting a first instruction to initialize one or more data structures for a first snapshot of a volume that is stored in the primary storage system; transmitting, to each of the secondary storage systems, a respective second instruction to initialize one or more data structures for a respective snapshot of a copy of the volume that is stored in that secondary storage system; suspending servicing of input-output (I/O) by the primary storage system; transmitting to the primary storage system a third instruction to complete the first snapshot of the volume; transmitting to each of the secondary storage systems a respective fourth instruction to complete a respective snapshot of the copy of the volume; and resuming servicing of I/O.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.