System maps SCSI device with virtual logical unit number and multicast address for efficient data replication over TCP/IP network
US6865617B2 · kind B2 · utility
25Cited by
14References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2001 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Jun 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention combines IP multicasting mechanisms with SCSI protocols to achieve a more efficient data replication or data mirroring scheme. The combination of the IP multicast mechanism with the mapping of virtual unit logical number to real logical unit numbers, combined with the use of SCSI response frames, ensures the integrity of multicasted data. By use of the SCSI protocol over the TCP/IP according to the present invention, there is no further need to transfer multiple copies of the same data on the same communication link, and the routing logic may be removed from initiator and targets to IP routers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.