Method and system for data compression and compression estimation in a virtual tape library environment
US7437492B2 · kind B2 · utility
22Cited by
102References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Oct 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for efficiently storing and transferring data in a virtual tape library environment is disclosed. Data is written to a virtual tape library that emulates a physical tape library. Data stored in the virtual tape library may be compressed and an estimated compression ratio may be dynamically computed. While data is written to the virtual tape library, an end-of-tape signal is provided based on the estimated compression ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.