Method and system for handling sequential data in a hierarchical store
US4533995A · kind A · utility
50Cited by
14References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 3, 1981 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Aug 3, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0862
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data is promoted from a backing store (disk storage apparatus termed DASD) to a random access cache in a peripheral data storage system. When a sequential access bit is sent to the storage system, all data specified in a read command is fetched to the cache from DASD. If such prefetched data is replaced from cache and the sequential bit is on, a subsequent host access request for such data causes all related data, up to a predetermined maximum, not yet read to be promoted to cache.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.