JPS6484472A - Disk channel device - Google Patents
Disk channel deviceInfo
- Publication number
- JPS6484472A JPS6484472A JP23915387A JP23915387A JPS6484472A JP S6484472 A JPS6484472 A JP S6484472A JP 23915387 A JP23915387 A JP 23915387A JP 23915387 A JP23915387 A JP 23915387A JP S6484472 A JPS6484472 A JP S6484472A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- write
- normal
- data
- error
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To improve the reliability of disk write by reading data from a disk when a write operation is executed according to a disk write request and returning a normal finish status when the data is normal, or an error finish status when it is abnormal, to a CPU. CONSTITUTION:The microcomputer 30 of a disk channel device 3 controls a data transfer control circuit 32, and performs read or write to a magnetic disk 6 through a disk controller 5. When all the data of a buffer 33 is normally written, the write is automatically read at once by a firmware 31, and stored in the buffer 34. At that time, the confirmation of a read error is performed. The normal finish status when it is normal or the error finish status when it is abnormal, is returned to the CPU 2. Thus, the reliability of the disk write operation is improved without imposing a burden on a software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23915387A JPS6484472A (en) | 1987-09-25 | 1987-09-25 | Disk channel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23915387A JPS6484472A (en) | 1987-09-25 | 1987-09-25 | Disk channel device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6484472A true JPS6484472A (en) | 1989-03-29 |
Family
ID=17040539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23915387A Pending JPS6484472A (en) | 1987-09-25 | 1987-09-25 | Disk channel device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6484472A (en) |
-
1987
- 1987-09-25 JP JP23915387A patent/JPS6484472A/en active Pending
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