Method for snooping RAID 1 write transactions by a storage device
US7080198B1 · kind B1 · utility
8Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To implement a RAID 1 transaction, an initiator sends a single command, i.e., either a single read command, or a single write command, over a common I/O bus to a primary target device. A mirror target device snoops the common I/O bus and upon detecting the single command directed to the primary target device, effectively performs in the same manner as if the command had been directed to the mirror target device. Hence, a single command is used to effectuate a mirrored transaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.