Storing indicators of unreferenced memory addresses in volatile memory
US9817599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Apr 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2079
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In example implementations, unreferenced memory addresses in a segment of a storage volume may be identified. Access to the segment of the storage volume may be controlled by one of a plurality of storage volume controllers (SVCs). The plurality of SVCs may control access to respective segments of the storage volume. Indicators of the identified unreferenced memory addresses may be stored in a volatile memory in the one of the plurality of SVCs. In response to an input/output (I/O) command from a host, data may be written to one of the identified unreferenced memory addresses corresponding to one of the indicators stored in the volatile memory. After the data has been written, the one of the indicators may be deleted from the volatile memory. The one of the identified unreferenced memory addresses may not have been made available to other SVCs after being identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.