Synchronizing a distributed mirror
US6993635B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Mar 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2082
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for synchronizing a distributed mirror. A computer system incorporating the invention may divide a mirror source into N chunks, assigning N storage processors responsibility for respective chunks of the mirror. The storage processors then may communicate among themselves to synchronize a distributed mirror. The storage processors may communicate mirror source blocks or their addresses and host-initiated (user) data requests. A storage processor may assist the synchronization of a mirror. The processor may accept responsibility for a chunk of a mirror source and communicate with a second storage processor responsible for another chunk of the mirror source to synchronize the mirror. The storage processor may track addresses of source blocks currently in use for synchronization, as well as addresses of source blocks to be synchronized after the blocks currently in use for synchronization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.