Data storage apparatus and method
US5081548A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 26, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Feb 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data storage apparatus is known in which data is stored on a tape medium in at least two different longitudinally spaced sections (Partitions I and 0) with data recordal in each section being effected in accordance with a predetermined format. This format will generally be of the type in which tape-usage information is recorded in a system log (82) located upstream of the main data area (37). It is also known to record tape usage information relating to each tape section (Partition 1,0) in the system log (82) of that section. The present apparatus provides not only for the recording of usage information from which section-specific information can be derived, but also for the recording of aggregated tape usage information. This latter information is stored in the system log (82) of the first tape section (Partition 1) so as to be readily accessible upon tape loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.