JPS54146539A - Process method in response to division of magnetic disk face - Google Patents
Process method in response to division of magnetic disk faceInfo
- Publication number
- JPS54146539A JPS54146539A JP5407878A JP5407878A JPS54146539A JP S54146539 A JPS54146539 A JP S54146539A JP 5407878 A JP5407878 A JP 5407878A JP 5407878 A JP5407878 A JP 5407878A JP S54146539 A JPS54146539 A JP S54146539A
- Authority
- JP
- Japan
- Prior art keywords
- order
- magnetic disk
- disk
- sector
- sector address
- 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
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To secure an effective replacement from plural units of disks to a single disk by using the order capable of the direct access to each sector plus the order capable of the indirect access with conversion of each sector of the magnetic disk face.
CONSTITUTION: The magnetic disk face of large-capacity magnetic disk unit 1, which replaces plural units of small-capacity disks 9W12, is divided into plural parts. When the extension order is sent to the disk controller from CPU, an access is given directly to the sector address with no conversion of the sector address to carry out the order. While with transmission of the standard order to the disk controller, the unit number is read out and the sector address is converted to the sector address of the correspondent disk unit to carry out the order. In this way, an effective replacement is possible from plural units of disks to a single disk.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5407878A JPS54146539A (en) | 1978-05-09 | 1978-05-09 | Process method in response to division of magnetic disk face |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5407878A JPS54146539A (en) | 1978-05-09 | 1978-05-09 | Process method in response to division of magnetic disk face |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54146539A true JPS54146539A (en) | 1979-11-15 |
Family
ID=12960569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5407878A Pending JPS54146539A (en) | 1978-05-09 | 1978-05-09 | Process method in response to division of magnetic disk face |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146539A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4860545A (en) * | 1971-11-17 | 1973-08-24 | ||
JPS515933A (en) * | 1974-07-04 | 1976-01-19 | Nippon Electric Co | DEETASHORISOCHI |
JPS5228231A (en) * | 1975-06-23 | 1977-03-03 | Ibm | Storage device |
JPS5289434A (en) * | 1976-01-21 | 1977-07-27 | Toshiba Corp | Magnetic disk control method |
-
1978
- 1978-05-09 JP JP5407878A patent/JPS54146539A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4860545A (en) * | 1971-11-17 | 1973-08-24 | ||
JPS515933A (en) * | 1974-07-04 | 1976-01-19 | Nippon Electric Co | DEETASHORISOCHI |
JPS5228231A (en) * | 1975-06-23 | 1977-03-03 | Ibm | Storage device |
JPS5289434A (en) * | 1976-01-21 | 1977-07-27 | Toshiba Corp | Magnetic disk control method |
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