Coalescing metadata and data writes via write serialization with device-level address remapping
US10289340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods and/or devices are used to coalesce metadata and data writes via write serialization with device-level address remapping. In one aspect, a method of managing a storage system having one or more storage devices includes a serialized write operation to the storage system, in which a serialization segment accumulates data objects and mapping information until the segment is full, at which time the serialization segment is written to the storage system in a single contiguous write. As a result, the number of I/O operations is decreased from a minimum of two (one to write data and one to write updated mapping information) to a single write operation. Further, if the serialization segment contains existing valid data prior to accumulating data objects and mapping information, the valid data is moved to the beginning of the serialization segment using either a remap or xcopy operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.