Magnetic tape storage apparatus writing status information to magnetic tape indicating a tape abnormality
US5525902A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic tape storage apparatus including a drive unit for writing/reading information on and from a magnetic tape using a rotary head (RH) by the helical scan method and a storage control unit for controlling the drive unit. The magnetic tape storage apparatus further includes a system area formed at a portion of the magnetic tape other than the user area where user data is recorded and is used only by the storage control unit, table read-out device for reading out management information tables relating to the magnetic tape, written in the system area, into a memory device in the storage control unit when the magnetic tape is loaded into the drive unit, table record device, while the storage control unit refers to data of the management information tables, for performing a write/read operation on the user area on the magnetic tape and for writing status information, indicating an abnormal termination of the writing or reading of the magnetic tape, to the management information tables at a header area located at a position after a beginning of the magnetic tape and before the user area, and judgement device for judging an existence of a tape abnormality by reading the status inform…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.