Device, system, and method of intelligently splitting information in an I/O system
US6735636B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Nov 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed device, system and methods of data management facilitate the implementation of improved mirroring, back-up, volume remapping and extent relocation, among others. The disclosed intelligent I/O stream splitter may intercept and alter an I/O stream from a communications link. In the case of mirroring, the intelligent splitter may intercept write commands and associated data from a mainframe that target a specific storage location on a specific control unit. The splitter may then transmit the intercepted I/O stream to the targeted control unit and storage location over one link and transmit on another link an altered version of the intercepted I/O stream to another control unit, which is responsible for holding a mirrored version of the data. The altered version could have the same data as that on the one link, or may include new frame headers, changes to the control information, or changes to the data itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.