Parallel checksumming of data chunks of a shared data object using a log-structured file system
US9436722B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Checksum values are generated and used to verify the data integrity. A client executing in a parallel computing system stores a data chunk to a shared data object on a storage node in the parallel computing system. The client determines a checksum value for the data chunk; and provides the checksum value with the data chunk to the storage node that stores the shared object. The data chunk can be stored on the storage node with the corresponding checksum value as part of the shared object. The storage node may be part of a Parallel Log-Structured File System (PLFS), and the client may comprise, for example, a Log-Structured File System client on a compute node or burst buffer. The checksum value can be evaluated when the data chunk is read from the storage node to verify the integrity of the data that is read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.