JPS63149879A - Alternate processing control system - Google Patents
Alternate processing control systemInfo
- Publication number
- JPS63149879A JPS63149879A JP29714786A JP29714786A JPS63149879A JP S63149879 A JPS63149879 A JP S63149879A JP 29714786 A JP29714786 A JP 29714786A JP 29714786 A JP29714786 A JP 29714786A JP S63149879 A JPS63149879 A JP S63149879A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- data block
- host
- address
- defective data
- 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
- 230000002950 deficient Effects 0.000 abstract 4
Abstract
PURPOSE: To shorten a wiring/reading processing time and to prevent the deterioration in the processing efficiency of a system by executing a writing/reading processing to a memory in a device when there is a defective data block in a processing range.
CONSTITUTION: The contents of the ID of the defective data block are written according to the instructing address of a counter in the memory 11 based on the control of a control circuit 3 and an address at that time is transmitted to a memory 13. When a comparison circuit 10 detects that coincidence of the ID of the data block from a host device and the ID of the defective data block in the memory 11, in the case of a writing instruction, the data from the host device is written in the memory 13 according to the instruction address of the counter 12 and in the case of a reading instruction, the data from the memory 13 is fed to the host device. Accordingly, it is not required to write or read the defective data block in a disk device and the processing efficiency can be enhanced.
COPYRIGHT: (C)1988,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29714786A JPS63149879A (en) | 1986-12-12 | 1986-12-12 | Alternate processing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29714786A JPS63149879A (en) | 1986-12-12 | 1986-12-12 | Alternate processing control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149879A true JPS63149879A (en) | 1988-06-22 |
Family
ID=17842808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29714786A Pending JPS63149879A (en) | 1986-12-12 | 1986-12-12 | Alternate processing control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149879A (en) |
-
1986
- 1986-12-12 JP JP29714786A patent/JPS63149879A/en active Pending
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