Point-in-time copy on a remote system
US11003541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jan 6, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/128
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method, according to one embodiment, includes: receiving data at a secondary storage volume from a primary storage volume. In response to receiving a read request: a request is sent for at least a portion of the data corresponding to the read request in response to determining that at least a portion of the data corresponding to the read request is not in any of the regions in the secondary storage volume. The at least a portion of the data corresponding to the read request is received, and further stored in one or more regions in the secondary storage volume. Furthermore, a message is sent indicating that the one or more regions in the secondary storage volume in which the data was stored contain the at least a portion of the data corresponding to the read request received, the message being for updating a primary record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.