Method for reduction of off-track errors or write failures in data storage tape systems
US6600616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Nov 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5504
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of a data storage tape control system and methods are disclosed that may work to correct off-track errors, reduce the frequency of off-track errors, and/or reduce the negative effects of off-track errors in writing performance. The invented method slows tape speed in response to off-track errors, preferably by continuously decelerating while attempting writing multiple retries. The invented method helps prevent further off-track errors and the resulting frequent interruptions of writing, by helping improve head placement accuracy. Once a selected amount of data is written, for example, a standard data-set or other block of data, the tape speed optionally may be accelerated to the original target speed. While the average tape speed may be reduced during the invented writing procedure, the overall efficiency of writing may be increased compared to an operation in which off-track errors and writing failures occur repeatedly because of high tape speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.