JPS6441918A - Load distributed control system for secondary storage device - Google Patents
Load distributed control system for secondary storage deviceInfo
- Publication number
- JPS6441918A JPS6441918A JP19762287A JP19762287A JPS6441918A JP S6441918 A JPS6441918 A JP S6441918A JP 19762287 A JP19762287 A JP 19762287A JP 19762287 A JP19762287 A JP 19762287A JP S6441918 A JPS6441918 A JP S6441918A
- Authority
- JP
- Japan
- Prior art keywords
- secondary storage
- storage device
- records
- storage devices
- load degree
- 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
Abstract
PURPOSE:To effectively use a secondary storage device and to improve system performance by providing a coefficient showing throughput to the secondary storage device. CONSTITUTION:On a main storage device 1, five blocks 11-15 composed of respectively 10 pages are equipped, and assigned to respective secondary storage devices 61-64. First records 501-531 is a coefficient to show the throughput of the secondary storage devices 61-64 and recorded so that the value having the higher throughput can be made smaller. The number of the times of the access is counted and recorded to second records 502-532 with an access frequency measuring means 3 to the above-mentioned secondary storage devices 61-64. Based on the contents of first second records, a load degree measuring means 41 measures the load degree of the secondary storage devices 61-64 and records it to third records 503-533. Thus, with use of a load degree comparing means 8, it is compared to which secondary storage devices 61-64, the blocks 11-15 are assigned, and the secondary storage device having the lowest load degree is selected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19762287A JPS6441918A (en) | 1987-08-07 | 1987-08-07 | Load distributed control system for secondary storage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19762287A JPS6441918A (en) | 1987-08-07 | 1987-08-07 | Load distributed control system for secondary storage device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441918A true JPS6441918A (en) | 1989-02-14 |
Family
ID=16377541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19762287A Pending JPS6441918A (en) | 1987-08-07 | 1987-08-07 | Load distributed control system for secondary storage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441918A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10585622B2 (en) | 2017-12-04 | 2020-03-10 | Toyo Corporation | Data writing device and method |
-
1987
- 1987-08-07 JP JP19762287A patent/JPS6441918A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10585622B2 (en) | 2017-12-04 | 2020-03-10 | Toyo Corporation | Data writing device and method |
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