Method, system, and program for copying tracks between a primary storage and secondary storage
US7451283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2004 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Feb 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2074
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a method, system, and program for copying tracks between a primary controller and secondary controller. A track is received from the primary controller that is part of a copy job comprising a sequence of tracks to copy along with a sequence number of the received track and a context number identifying computational resources in the primary controller used to transmit the track, sequence number, and context number. The context number and sequence number transmitted with the track are used to determine if a track preceding the received track was written to storage. The secondary-controller writes the received track to storage if the track preceding the received track was written to storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.