JPS573209A - Control system for magnetic tape device - Google Patents
Control system for magnetic tape deviceInfo
- Publication number
- JPS573209A JPS573209A JP7614380A JP7614380A JPS573209A JP S573209 A JPS573209 A JP S573209A JP 7614380 A JP7614380 A JP 7614380A JP 7614380 A JP7614380 A JP 7614380A JP S573209 A JPS573209 A JP S573209A
- Authority
- JP
- Japan
- Prior art keywords
- processing
- information byte
- byte group
- magnetic tape
- specific pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE:To evade relocating processing by displaying abnormality of a defective information byte group by recording a specific pattern in succession to the defective information byte group when detecting abnormality in write processing. CONSTITUTION:Under a request-to-write command from a host device 1 to a magnetic tape device 3, an information byte group is transferred via an input and output control part 5, a processing part 6 and a driving part 8 to the magnetic tape device 3, where it is written. The information byte group is read out and transferred to a reception part 2. A processing part 6, on detecting abnormality in write processing, actuates a specific pattern generation part 10 and commands the driving part 8 write a specific pattern through the magnetic tape device 3. The device 3 writes and rereads the specific pattern and transfers it to a reception part 9. The processing part 6 makes a request to rewrite the information byte group, which is recorded normally. Thus, abnormality of a defective information byte group is displayed and relocating processing is evaded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7614380A JPS573209A (en) | 1980-06-05 | 1980-06-05 | Control system for magnetic tape device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7614380A JPS573209A (en) | 1980-06-05 | 1980-06-05 | Control system for magnetic tape device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS573209A true JPS573209A (en) | 1982-01-08 |
Family
ID=13596768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7614380A Pending JPS573209A (en) | 1980-06-05 | 1980-06-05 | Control system for magnetic tape device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS573209A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140456A1 (en) * | 1983-11-02 | 1985-05-08 | Koninklijke Philips Electronics N.V. | Data processing system in which unreliable words in the memory are replaced by an unreliability indicator |
-
1980
- 1980-06-05 JP JP7614380A patent/JPS573209A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0140456A1 (en) * | 1983-11-02 | 1985-05-08 | Koninklijke Philips Electronics N.V. | Data processing system in which unreliable words in the memory are replaced by an unreliability indicator |
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