Accelerating synchronization of certain types of cached data
US9280469B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Nov 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/313
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique manages data within a data storage apparatus having a cache of volatile memory and non-volatile storage. The technique involves receiving a set of write commands to write data to the non-volatile storage. The technique further involves acknowledging, in a write-back caching manner, completion of the set of write commands after the data reaches the cache of volatile memory and prior to the data reaching the non-volatile storage. The data includes host data as well as critical metadata. The technique further involves saving, after acknowledging completion of the set of write commands, the data from the cache of volatile memory to the non-volatile storage, the critical metadata being saved from the cache of volatile memory to the non-volatile storage at a quicker rate than that of the host data (i.e., accelerated synchronization of the critical metadata).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.